1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 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, |
… | |
… | |
43 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
44 | # else |
44 | # else |
45 | # include "config.h" |
45 | # include "config.h" |
46 | # endif |
46 | # endif |
47 | |
47 | |
|
|
48 | #if HAVE_FLOOR |
|
|
49 | # ifndef EV_USE_FLOOR |
|
|
50 | # define EV_USE_FLOOR 1 |
|
|
51 | # endif |
|
|
52 | #endif |
|
|
53 | |
48 | # if HAVE_CLOCK_SYSCALL |
54 | # if HAVE_CLOCK_SYSCALL |
49 | # ifndef EV_USE_CLOCK_SYSCALL |
55 | # ifndef EV_USE_CLOCK_SYSCALL |
50 | # define EV_USE_CLOCK_SYSCALL 1 |
56 | # define EV_USE_CLOCK_SYSCALL 1 |
51 | # ifndef EV_USE_REALTIME |
57 | # ifndef EV_USE_REALTIME |
52 | # define EV_USE_REALTIME 0 |
58 | # define EV_USE_REALTIME 0 |
53 | # endif |
59 | # endif |
54 | # ifndef EV_USE_MONOTONIC |
60 | # ifndef EV_USE_MONOTONIC |
55 | # define EV_USE_MONOTONIC 1 |
61 | # define EV_USE_MONOTONIC 1 |
56 | # endif |
62 | # endif |
57 | # endif |
63 | # endif |
58 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
64 | # elif !defined EV_USE_CLOCK_SYSCALL |
59 | # define EV_USE_CLOCK_SYSCALL 0 |
65 | # define EV_USE_CLOCK_SYSCALL 0 |
60 | # endif |
66 | # endif |
61 | |
67 | |
62 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
63 | # ifndef EV_USE_MONOTONIC |
69 | # ifndef EV_USE_MONOTONIC |
… | |
… | |
156 | # define EV_USE_EVENTFD 0 |
162 | # define EV_USE_EVENTFD 0 |
157 | # endif |
163 | # endif |
158 | |
164 | |
159 | #endif |
165 | #endif |
160 | |
166 | |
161 | #include <math.h> |
|
|
162 | #include <stdlib.h> |
167 | #include <stdlib.h> |
163 | #include <string.h> |
168 | #include <string.h> |
164 | #include <fcntl.h> |
169 | #include <fcntl.h> |
165 | #include <stddef.h> |
170 | #include <stddef.h> |
166 | |
171 | |
… | |
… | |
178 | # include EV_H |
183 | # include EV_H |
179 | #else |
184 | #else |
180 | # include "ev.h" |
185 | # include "ev.h" |
181 | #endif |
186 | #endif |
182 | |
187 | |
183 | EV_CPP(extern "C" {) |
188 | #if EV_NO_THREADS |
|
|
189 | # undef EV_NO_SMP |
|
|
190 | # define EV_NO_SMP 1 |
|
|
191 | # undef ECB_NO_THREADS |
|
|
192 | # define ECB_NO_THREADS 1 |
|
|
193 | #endif |
|
|
194 | #if EV_NO_SMP |
|
|
195 | # undef EV_NO_SMP |
|
|
196 | # define ECB_NO_SMP 1 |
|
|
197 | #endif |
184 | |
198 | |
185 | #ifndef _WIN32 |
199 | #ifndef _WIN32 |
186 | # include <sys/time.h> |
200 | # include <sys/time.h> |
187 | # include <sys/wait.h> |
201 | # include <sys/wait.h> |
188 | # include <unistd.h> |
202 | # include <unistd.h> |
189 | #else |
203 | #else |
190 | # include <io.h> |
204 | # include <io.h> |
191 | # define WIN32_LEAN_AND_MEAN |
205 | # define WIN32_LEAN_AND_MEAN |
|
|
206 | # include <winsock2.h> |
192 | # include <windows.h> |
207 | # include <windows.h> |
193 | # ifndef EV_SELECT_IS_WINSOCKET |
208 | # ifndef EV_SELECT_IS_WINSOCKET |
194 | # define EV_SELECT_IS_WINSOCKET 1 |
209 | # define EV_SELECT_IS_WINSOCKET 1 |
195 | # endif |
210 | # endif |
196 | # undef EV_AVOID_STDIO |
211 | # undef EV_AVOID_STDIO |
… | |
… | |
205 | #define _DARWIN_UNLIMITED_SELECT 1 |
220 | #define _DARWIN_UNLIMITED_SELECT 1 |
206 | |
221 | |
207 | /* 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 */ |
208 | |
223 | |
209 | /* try to deduce the maximum number of signals on this platform */ |
224 | /* try to deduce the maximum number of signals on this platform */ |
210 | #if defined (EV_NSIG) |
225 | #if defined EV_NSIG |
211 | /* use what's provided */ |
226 | /* use what's provided */ |
212 | #elif defined (NSIG) |
227 | #elif defined NSIG |
213 | # define EV_NSIG (NSIG) |
228 | # define EV_NSIG (NSIG) |
214 | #elif defined(_NSIG) |
229 | #elif defined _NSIG |
215 | # define EV_NSIG (_NSIG) |
230 | # define EV_NSIG (_NSIG) |
216 | #elif defined (SIGMAX) |
231 | #elif defined SIGMAX |
217 | # define EV_NSIG (SIGMAX+1) |
232 | # define EV_NSIG (SIGMAX+1) |
218 | #elif defined (SIG_MAX) |
233 | #elif defined SIG_MAX |
219 | # define EV_NSIG (SIG_MAX+1) |
234 | # define EV_NSIG (SIG_MAX+1) |
220 | #elif defined (_SIG_MAX) |
235 | #elif defined _SIG_MAX |
221 | # define EV_NSIG (_SIG_MAX+1) |
236 | # define EV_NSIG (_SIG_MAX+1) |
222 | #elif defined (MAXSIG) |
237 | #elif defined MAXSIG |
223 | # define EV_NSIG (MAXSIG+1) |
238 | # define EV_NSIG (MAXSIG+1) |
224 | #elif defined (MAX_SIG) |
239 | #elif defined MAX_SIG |
225 | # define EV_NSIG (MAX_SIG+1) |
240 | # define EV_NSIG (MAX_SIG+1) |
226 | #elif defined (SIGARRAYSIZE) |
241 | #elif defined SIGARRAYSIZE |
227 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
228 | #elif defined (_sys_nsig) |
243 | #elif defined _sys_nsig |
229 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
230 | #else |
245 | #else |
231 | # error "unable to find value for NSIG, please report" |
246 | # define EV_NSIG (8 * sizeof (sigset_t) + 1) |
232 | /* to make it compile regardless, just remove the above line, */ |
247 | #endif |
233 | /* but consider reporting it, too! :) */ |
248 | |
234 | # define EV_NSIG 65 |
249 | #ifndef EV_USE_FLOOR |
|
|
250 | # define EV_USE_FLOOR 0 |
235 | #endif |
251 | #endif |
236 | |
252 | |
237 | #ifndef EV_USE_CLOCK_SYSCALL |
253 | #ifndef EV_USE_CLOCK_SYSCALL |
238 | # if __linux && __GLIBC__ >= 2 |
254 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
239 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
255 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
240 | # else |
256 | # else |
241 | # define EV_USE_CLOCK_SYSCALL 0 |
257 | # define EV_USE_CLOCK_SYSCALL 0 |
242 | # endif |
258 | # endif |
243 | #endif |
259 | #endif |
244 | |
260 | |
245 | #ifndef EV_USE_MONOTONIC |
261 | #ifndef EV_USE_MONOTONIC |
246 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
262 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
247 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
263 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
248 | # else |
264 | # else |
249 | # define EV_USE_MONOTONIC 0 |
265 | # define EV_USE_MONOTONIC 0 |
250 | # endif |
266 | # endif |
251 | #endif |
267 | #endif |
… | |
… | |
338 | |
354 | |
339 | #ifndef EV_HEAP_CACHE_AT |
355 | #ifndef EV_HEAP_CACHE_AT |
340 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
356 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
341 | #endif |
357 | #endif |
342 | |
358 | |
|
|
359 | #ifdef ANDROID |
|
|
360 | /* supposedly, android doesn't typedef fd_mask */ |
|
|
361 | # undef EV_USE_SELECT |
|
|
362 | # define EV_USE_SELECT 0 |
|
|
363 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
|
|
364 | # undef EV_USE_CLOCK_SYSCALL |
|
|
365 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
366 | #endif |
|
|
367 | |
|
|
368 | /* aix's poll.h seems to cause lots of trouble */ |
|
|
369 | #ifdef _AIX |
|
|
370 | /* AIX has a completely broken poll.h header */ |
|
|
371 | # undef EV_USE_POLL |
|
|
372 | # define EV_USE_POLL 0 |
|
|
373 | #endif |
|
|
374 | |
343 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
375 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
344 | /* which makes programs even slower. might work on other unices, too. */ |
376 | /* which makes programs even slower. might work on other unices, too. */ |
345 | #if EV_USE_CLOCK_SYSCALL |
377 | #if EV_USE_CLOCK_SYSCALL |
346 | # include <syscall.h> |
378 | # include <sys/syscall.h> |
347 | # ifdef SYS_clock_gettime |
379 | # ifdef SYS_clock_gettime |
348 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
380 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
349 | # undef EV_USE_MONOTONIC |
381 | # undef EV_USE_MONOTONIC |
350 | # define EV_USE_MONOTONIC 1 |
382 | # define EV_USE_MONOTONIC 1 |
351 | # else |
383 | # else |
… | |
… | |
354 | # endif |
386 | # endif |
355 | #endif |
387 | #endif |
356 | |
388 | |
357 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
389 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
358 | |
390 | |
359 | #ifdef _AIX |
|
|
360 | /* AIX has a completely broken poll.h header */ |
|
|
361 | # undef EV_USE_POLL |
|
|
362 | # define EV_USE_POLL 0 |
|
|
363 | #endif |
|
|
364 | |
|
|
365 | #ifndef CLOCK_MONOTONIC |
391 | #ifndef CLOCK_MONOTONIC |
366 | # undef EV_USE_MONOTONIC |
392 | # undef EV_USE_MONOTONIC |
367 | # define EV_USE_MONOTONIC 0 |
393 | # define EV_USE_MONOTONIC 0 |
368 | #endif |
394 | #endif |
369 | |
395 | |
… | |
… | |
376 | # undef EV_USE_INOTIFY |
402 | # undef EV_USE_INOTIFY |
377 | # define EV_USE_INOTIFY 0 |
403 | # define EV_USE_INOTIFY 0 |
378 | #endif |
404 | #endif |
379 | |
405 | |
380 | #if !EV_USE_NANOSLEEP |
406 | #if !EV_USE_NANOSLEEP |
381 | # ifndef _WIN32 |
407 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
408 | # if !defined _WIN32 && !defined __hpux |
382 | # include <sys/select.h> |
409 | # include <sys/select.h> |
383 | # endif |
410 | # endif |
384 | #endif |
411 | #endif |
385 | |
412 | |
386 | #if EV_USE_INOTIFY |
413 | #if EV_USE_INOTIFY |
… | |
… | |
389 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
416 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
390 | # ifndef IN_DONT_FOLLOW |
417 | # ifndef IN_DONT_FOLLOW |
391 | # undef EV_USE_INOTIFY |
418 | # undef EV_USE_INOTIFY |
392 | # define EV_USE_INOTIFY 0 |
419 | # define EV_USE_INOTIFY 0 |
393 | # endif |
420 | # endif |
394 | #endif |
|
|
395 | |
|
|
396 | #if EV_SELECT_IS_WINSOCKET |
|
|
397 | # include <winsock.h> |
|
|
398 | #endif |
421 | #endif |
399 | |
422 | |
400 | #if EV_USE_EVENTFD |
423 | #if EV_USE_EVENTFD |
401 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
424 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
402 | # include <stdint.h> |
425 | # include <stdint.h> |
… | |
… | |
442 | #else |
465 | #else |
443 | # define EV_FREQUENT_CHECK do { } while (0) |
466 | # define EV_FREQUENT_CHECK do { } while (0) |
444 | #endif |
467 | #endif |
445 | |
468 | |
446 | /* |
469 | /* |
447 | * This is used to avoid floating point rounding problems. |
470 | * This is used to work around floating point rounding problems. |
448 | * It is added to ev_rt_now when scheduling periodics |
|
|
449 | * to ensure progress, time-wise, even when rounding |
|
|
450 | * errors are against us. |
|
|
451 | * This value is good at least till the year 4000. |
471 | * This value is good at least till the year 4000. |
452 | * Better solutions welcome. |
|
|
453 | */ |
472 | */ |
454 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
473 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
|
|
474 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
455 | |
475 | |
456 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
476 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
457 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
477 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
458 | |
478 | |
459 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
479 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
460 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
480 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
461 | |
481 | |
|
|
482 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
|
|
483 | /* ECB.H BEGIN */ |
|
|
484 | /* |
|
|
485 | * libecb - http://software.schmorp.de/pkg/libecb |
|
|
486 | * |
|
|
487 | * Copyright (©) 2009-2014 Marc Alexander Lehmann <libecb@schmorp.de> |
|
|
488 | * Copyright (©) 2011 Emanuele Giaquinta |
|
|
489 | * All rights reserved. |
|
|
490 | * |
|
|
491 | * Redistribution and use in source and binary forms, with or without modifica- |
|
|
492 | * tion, are permitted provided that the following conditions are met: |
|
|
493 | * |
|
|
494 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
495 | * this list of conditions and the following disclaimer. |
|
|
496 | * |
|
|
497 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
498 | * notice, this list of conditions and the following disclaimer in the |
|
|
499 | * documentation and/or other materials provided with the distribution. |
|
|
500 | * |
|
|
501 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
502 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
503 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
504 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
505 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
506 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
|
|
507 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
|
|
508 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
|
|
509 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
|
|
510 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
511 | */ |
|
|
512 | |
|
|
513 | #ifndef ECB_H |
|
|
514 | #define ECB_H |
|
|
515 | |
|
|
516 | /* 16 bits major, 16 bits minor */ |
|
|
517 | #define ECB_VERSION 0x00010003 |
|
|
518 | |
|
|
519 | #ifdef _WIN32 |
|
|
520 | typedef signed char int8_t; |
|
|
521 | typedef unsigned char uint8_t; |
|
|
522 | typedef signed short int16_t; |
|
|
523 | typedef unsigned short uint16_t; |
|
|
524 | typedef signed int int32_t; |
|
|
525 | typedef unsigned int uint32_t; |
462 | #if __GNUC__ >= 4 |
526 | #if __GNUC__ |
463 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
527 | typedef signed long long int64_t; |
464 | # define noinline __attribute__ ((noinline)) |
528 | typedef unsigned long long uint64_t; |
|
|
529 | #else /* _MSC_VER || __BORLANDC__ */ |
|
|
530 | typedef signed __int64 int64_t; |
|
|
531 | typedef unsigned __int64 uint64_t; |
|
|
532 | #endif |
|
|
533 | #ifdef _WIN64 |
|
|
534 | #define ECB_PTRSIZE 8 |
|
|
535 | typedef uint64_t uintptr_t; |
|
|
536 | typedef int64_t intptr_t; |
|
|
537 | #else |
|
|
538 | #define ECB_PTRSIZE 4 |
|
|
539 | typedef uint32_t uintptr_t; |
|
|
540 | typedef int32_t intptr_t; |
|
|
541 | #endif |
465 | #else |
542 | #else |
466 | # define expect(expr,value) (expr) |
543 | #include <inttypes.h> |
467 | # define noinline |
544 | #if UINTMAX_MAX > 0xffffffffU |
468 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
545 | #define ECB_PTRSIZE 8 |
469 | # define inline |
546 | #else |
|
|
547 | #define ECB_PTRSIZE 4 |
|
|
548 | #endif |
470 | # endif |
549 | #endif |
|
|
550 | |
|
|
551 | /* work around x32 idiocy by defining proper macros */ |
|
|
552 | #if __amd64 || __x86_64 || _M_AMD64 || _M_X64 |
|
|
553 | #if _ILP32 |
|
|
554 | #define ECB_AMD64_X32 1 |
|
|
555 | #else |
|
|
556 | #define ECB_AMD64 1 |
471 | #endif |
557 | #endif |
|
|
558 | #endif |
472 | |
559 | |
|
|
560 | /* many compilers define _GNUC_ to some versions but then only implement |
|
|
561 | * what their idiot authors think are the "more important" extensions, |
|
|
562 | * causing enormous grief in return for some better fake benchmark numbers. |
|
|
563 | * or so. |
|
|
564 | * we try to detect these and simply assume they are not gcc - if they have |
|
|
565 | * an issue with that they should have done it right in the first place. |
|
|
566 | */ |
|
|
567 | #ifndef ECB_GCC_VERSION |
|
|
568 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
|
|
569 | #define ECB_GCC_VERSION(major,minor) 0 |
|
|
570 | #else |
|
|
571 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
|
|
572 | #endif |
|
|
573 | #endif |
|
|
574 | |
|
|
575 | #define ECB_CPP (__cplusplus+0) |
|
|
576 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
577 | |
|
|
578 | #if ECB_CPP |
|
|
579 | #define ECB_C 0 |
|
|
580 | #define ECB_STDC_VERSION 0 |
|
|
581 | #else |
|
|
582 | #define ECB_C 1 |
|
|
583 | #define ECB_STDC_VERSION __STDC_VERSION__ |
|
|
584 | #endif |
|
|
585 | |
|
|
586 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
|
|
587 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
|
|
588 | |
|
|
589 | #if ECB_CPP |
|
|
590 | #define ECB_EXTERN_C extern "C" |
|
|
591 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
|
|
592 | #define ECB_EXTERN_C_END } |
|
|
593 | #else |
|
|
594 | #define ECB_EXTERN_C extern |
|
|
595 | #define ECB_EXTERN_C_BEG |
|
|
596 | #define ECB_EXTERN_C_END |
|
|
597 | #endif |
|
|
598 | |
|
|
599 | /*****************************************************************************/ |
|
|
600 | |
|
|
601 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
|
|
602 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
|
|
603 | |
|
|
604 | #if ECB_NO_THREADS |
|
|
605 | #define ECB_NO_SMP 1 |
|
|
606 | #endif |
|
|
607 | |
|
|
608 | #if ECB_NO_SMP |
|
|
609 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
610 | #endif |
|
|
611 | |
|
|
612 | #ifndef ECB_MEMORY_FENCE |
|
|
613 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
614 | #if __i386 || __i386__ |
|
|
615 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
616 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
617 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
618 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
|
|
619 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
620 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
621 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
622 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
|
|
623 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
624 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
|
|
625 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
|
|
626 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
|
|
627 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
|
|
628 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
|
|
629 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
630 | #elif __aarch64__ |
|
|
631 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
|
|
632 | #elif (__sparc || __sparc__) && !__sparcv8 |
|
|
633 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
|
|
634 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
|
|
635 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
636 | #elif defined __s390__ || defined __s390x__ |
|
|
637 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
638 | #elif defined __mips__ |
|
|
639 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
640 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
|
|
641 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
|
|
642 | #elif defined __alpha__ |
|
|
643 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
644 | #elif defined __hppa__ |
|
|
645 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
646 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
647 | #elif defined __ia64__ |
|
|
648 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
649 | #elif defined __m68k__ |
|
|
650 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
651 | #elif defined __m88k__ |
|
|
652 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
653 | #elif defined __sh__ |
|
|
654 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
655 | #endif |
|
|
656 | #endif |
|
|
657 | #endif |
|
|
658 | |
|
|
659 | #ifndef ECB_MEMORY_FENCE |
|
|
660 | #if ECB_GCC_VERSION(4,7) |
|
|
661 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
662 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
663 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
664 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
665 | |
|
|
666 | /* The __has_feature syntax from clang is so misdesigned that we cannot use it |
|
|
667 | * without risking compile time errors with other compilers. We *could* |
|
|
668 | * define our own ecb_clang_has_feature, but I just can't be bothered to work |
|
|
669 | * around this shit time and again. |
|
|
670 | * #elif defined __clang && __has_feature (cxx_atomic) |
|
|
671 | * // see comment below (stdatomic.h) about the C11 memory model. |
|
|
672 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
673 | * #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
674 | * #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
675 | */ |
|
|
676 | |
|
|
677 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
|
|
678 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
679 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
|
|
680 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
|
|
681 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
682 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
|
|
683 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
684 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
|
|
685 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
686 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
687 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
688 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
689 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
690 | #elif defined _WIN32 |
|
|
691 | #include <WinNT.h> |
|
|
692 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
693 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
694 | #include <mbarrier.h> |
|
|
695 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
696 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
|
|
697 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
|
|
698 | #elif __xlC__ |
|
|
699 | #define ECB_MEMORY_FENCE __sync () |
|
|
700 | #endif |
|
|
701 | #endif |
|
|
702 | |
|
|
703 | #ifndef ECB_MEMORY_FENCE |
|
|
704 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
705 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
706 | /* not just C11 atomics and atomic accesses */ |
|
|
707 | #include <stdatomic.h> |
|
|
708 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
709 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
710 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
711 | /* for most usages, or gcc and clang have a bug */ |
|
|
712 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
713 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
714 | /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */ |
|
|
715 | /* for all __atomic_thread_fence's except seq_cst */ |
|
|
716 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
717 | #endif |
|
|
718 | #endif |
|
|
719 | |
|
|
720 | #ifndef ECB_MEMORY_FENCE |
|
|
721 | #if !ECB_AVOID_PTHREADS |
|
|
722 | /* |
|
|
723 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
724 | * or failure to find pthread.h, then you should implement |
|
|
725 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
726 | * OR provide pthread.h and link against the posix thread library |
|
|
727 | * of your system. |
|
|
728 | */ |
|
|
729 | #include <pthread.h> |
|
|
730 | #define ECB_NEEDS_PTHREADS 1 |
|
|
731 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
732 | |
|
|
733 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
734 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
735 | #endif |
|
|
736 | #endif |
|
|
737 | |
|
|
738 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
|
|
739 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
740 | #endif |
|
|
741 | |
|
|
742 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
|
|
743 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
744 | #endif |
|
|
745 | |
|
|
746 | /*****************************************************************************/ |
|
|
747 | |
|
|
748 | #if __cplusplus |
|
|
749 | #define ecb_inline static inline |
|
|
750 | #elif ECB_GCC_VERSION(2,5) |
|
|
751 | #define ecb_inline static __inline__ |
|
|
752 | #elif ECB_C99 |
|
|
753 | #define ecb_inline static inline |
|
|
754 | #else |
|
|
755 | #define ecb_inline static |
|
|
756 | #endif |
|
|
757 | |
|
|
758 | #if ECB_GCC_VERSION(3,3) |
|
|
759 | #define ecb_restrict __restrict__ |
|
|
760 | #elif ECB_C99 |
|
|
761 | #define ecb_restrict restrict |
|
|
762 | #else |
|
|
763 | #define ecb_restrict |
|
|
764 | #endif |
|
|
765 | |
|
|
766 | typedef int ecb_bool; |
|
|
767 | |
|
|
768 | #define ECB_CONCAT_(a, b) a ## b |
|
|
769 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
770 | #define ECB_STRINGIFY_(a) # a |
|
|
771 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
772 | |
|
|
773 | #define ecb_function_ ecb_inline |
|
|
774 | |
|
|
775 | #if ECB_GCC_VERSION(3,1) |
|
|
776 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
|
|
777 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
778 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
779 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
780 | #else |
|
|
781 | #define ecb_attribute(attrlist) |
|
|
782 | |
|
|
783 | /* possible C11 impl for integral types |
|
|
784 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
|
|
785 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
|
|
786 | |
|
|
787 | #define ecb_is_constant(expr) 0 |
|
|
788 | #define ecb_expect(expr,value) (expr) |
|
|
789 | #define ecb_prefetch(addr,rw,locality) |
|
|
790 | #endif |
|
|
791 | |
|
|
792 | /* no emulation for ecb_decltype */ |
|
|
793 | #if ECB_GCC_VERSION(4,5) |
|
|
794 | #define ecb_decltype(x) __decltype(x) |
|
|
795 | #elif ECB_GCC_VERSION(3,0) |
|
|
796 | #define ecb_decltype(x) __typeof(x) |
|
|
797 | #endif |
|
|
798 | |
|
|
799 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
800 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
801 | #define ecb_const ecb_attribute ((__const__)) |
|
|
802 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
803 | |
|
|
804 | #if ECB_C11 |
|
|
805 | #define ecb_noreturn _Noreturn |
|
|
806 | #else |
|
|
807 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
808 | #endif |
|
|
809 | |
|
|
810 | #if ECB_GCC_VERSION(4,3) |
|
|
811 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
812 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
813 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
814 | #else |
|
|
815 | #define ecb_artificial |
|
|
816 | #define ecb_hot |
|
|
817 | #define ecb_cold |
|
|
818 | #endif |
|
|
819 | |
|
|
820 | /* put around conditional expressions if you are very sure that the */ |
|
|
821 | /* expression is mostly true or mostly false. note that these return */ |
|
|
822 | /* booleans, not the expression. */ |
473 | #define expect_false(expr) expect ((expr) != 0, 0) |
823 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
474 | #define expect_true(expr) expect ((expr) != 0, 1) |
824 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
825 | /* for compatibility to the rest of the world */ |
|
|
826 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
827 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
828 | |
|
|
829 | /* count trailing zero bits and count # of one bits */ |
|
|
830 | #if ECB_GCC_VERSION(3,4) |
|
|
831 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
832 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
833 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
834 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
835 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
836 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
837 | /* no popcountll */ |
|
|
838 | #else |
|
|
839 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
|
|
840 | ecb_function_ int |
|
|
841 | ecb_ctz32 (uint32_t x) |
|
|
842 | { |
|
|
843 | int r = 0; |
|
|
844 | |
|
|
845 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
846 | |
|
|
847 | #if ECB_branchless_on_i386 |
|
|
848 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
849 | r += !!(x & 0xcccccccc) << 1; |
|
|
850 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
851 | r += !!(x & 0xff00ff00) << 3; |
|
|
852 | r += !!(x & 0xffff0000) << 4; |
|
|
853 | #else |
|
|
854 | if (x & 0xaaaaaaaa) r += 1; |
|
|
855 | if (x & 0xcccccccc) r += 2; |
|
|
856 | if (x & 0xf0f0f0f0) r += 4; |
|
|
857 | if (x & 0xff00ff00) r += 8; |
|
|
858 | if (x & 0xffff0000) r += 16; |
|
|
859 | #endif |
|
|
860 | |
|
|
861 | return r; |
|
|
862 | } |
|
|
863 | |
|
|
864 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
|
|
865 | ecb_function_ int |
|
|
866 | ecb_ctz64 (uint64_t x) |
|
|
867 | { |
|
|
868 | int shift = x & 0xffffffffU ? 0 : 32; |
|
|
869 | return ecb_ctz32 (x >> shift) + shift; |
|
|
870 | } |
|
|
871 | |
|
|
872 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
|
|
873 | ecb_function_ int |
|
|
874 | ecb_popcount32 (uint32_t x) |
|
|
875 | { |
|
|
876 | x -= (x >> 1) & 0x55555555; |
|
|
877 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
878 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
879 | x *= 0x01010101; |
|
|
880 | |
|
|
881 | return x >> 24; |
|
|
882 | } |
|
|
883 | |
|
|
884 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
|
|
885 | ecb_function_ int ecb_ld32 (uint32_t x) |
|
|
886 | { |
|
|
887 | int r = 0; |
|
|
888 | |
|
|
889 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
890 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
891 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
892 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
893 | if (x >> 1) { r += 1; } |
|
|
894 | |
|
|
895 | return r; |
|
|
896 | } |
|
|
897 | |
|
|
898 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
|
|
899 | ecb_function_ int ecb_ld64 (uint64_t x) |
|
|
900 | { |
|
|
901 | int r = 0; |
|
|
902 | |
|
|
903 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
904 | |
|
|
905 | return r + ecb_ld32 (x); |
|
|
906 | } |
|
|
907 | #endif |
|
|
908 | |
|
|
909 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; |
|
|
910 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
911 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; |
|
|
912 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
913 | |
|
|
914 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
|
|
915 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
|
|
916 | { |
|
|
917 | return ( (x * 0x0802U & 0x22110U) |
|
|
918 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
919 | } |
|
|
920 | |
|
|
921 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
|
|
922 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
|
|
923 | { |
|
|
924 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
925 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
926 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
927 | x = ( x >> 8 ) | ( x << 8); |
|
|
928 | |
|
|
929 | return x; |
|
|
930 | } |
|
|
931 | |
|
|
932 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
|
|
933 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
|
|
934 | { |
|
|
935 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
936 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
937 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
938 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
939 | x = ( x >> 16 ) | ( x << 16); |
|
|
940 | |
|
|
941 | return x; |
|
|
942 | } |
|
|
943 | |
|
|
944 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
945 | /* so for this version we are lazy */ |
|
|
946 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
|
|
947 | ecb_function_ int |
|
|
948 | ecb_popcount64 (uint64_t x) |
|
|
949 | { |
|
|
950 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
951 | } |
|
|
952 | |
|
|
953 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
|
|
954 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
|
|
955 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
|
|
956 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
|
|
957 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
|
|
958 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
|
|
959 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
|
|
960 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
|
|
961 | |
|
|
962 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
963 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
964 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
965 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
966 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
967 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
968 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
969 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
970 | |
|
|
971 | #if ECB_GCC_VERSION(4,3) |
|
|
972 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
973 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
974 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
975 | #else |
|
|
976 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
|
|
977 | ecb_function_ uint16_t |
|
|
978 | ecb_bswap16 (uint16_t x) |
|
|
979 | { |
|
|
980 | return ecb_rotl16 (x, 8); |
|
|
981 | } |
|
|
982 | |
|
|
983 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
|
|
984 | ecb_function_ uint32_t |
|
|
985 | ecb_bswap32 (uint32_t x) |
|
|
986 | { |
|
|
987 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
988 | } |
|
|
989 | |
|
|
990 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
|
|
991 | ecb_function_ uint64_t |
|
|
992 | ecb_bswap64 (uint64_t x) |
|
|
993 | { |
|
|
994 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
995 | } |
|
|
996 | #endif |
|
|
997 | |
|
|
998 | #if ECB_GCC_VERSION(4,5) |
|
|
999 | #define ecb_unreachable() __builtin_unreachable () |
|
|
1000 | #else |
|
|
1001 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
1002 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
|
|
1003 | ecb_inline void ecb_unreachable (void) { } |
|
|
1004 | #endif |
|
|
1005 | |
|
|
1006 | /* try to tell the compiler that some condition is definitely true */ |
|
|
1007 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
|
|
1008 | |
|
|
1009 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
|
|
1010 | ecb_inline unsigned char |
|
|
1011 | ecb_byteorder_helper (void) |
|
|
1012 | { |
|
|
1013 | /* the union code still generates code under pressure in gcc, */ |
|
|
1014 | /* but less than using pointers, and always seems to */ |
|
|
1015 | /* successfully return a constant. */ |
|
|
1016 | /* the reason why we have this horrible preprocessor mess */ |
|
|
1017 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
1018 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
1019 | #if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64 |
|
|
1020 | return 0x44; |
|
|
1021 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ |
|
|
1022 | return 0x44; |
|
|
1023 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
|
|
1024 | return 0x11; |
|
|
1025 | #else |
|
|
1026 | union |
|
|
1027 | { |
|
|
1028 | uint32_t i; |
|
|
1029 | uint8_t c; |
|
|
1030 | } u = { 0x11223344 }; |
|
|
1031 | return u.c; |
|
|
1032 | #endif |
|
|
1033 | } |
|
|
1034 | |
|
|
1035 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
|
|
1036 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
|
|
1037 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
|
|
1038 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
|
|
1039 | |
|
|
1040 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
1041 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
1042 | #else |
|
|
1043 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
1044 | #endif |
|
|
1045 | |
|
|
1046 | #if __cplusplus |
|
|
1047 | template<typename T> |
|
|
1048 | static inline T ecb_div_rd (T val, T div) |
|
|
1049 | { |
|
|
1050 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
1051 | } |
|
|
1052 | template<typename T> |
|
|
1053 | static inline T ecb_div_ru (T val, T div) |
|
|
1054 | { |
|
|
1055 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
1056 | } |
|
|
1057 | #else |
|
|
1058 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
1059 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
1060 | #endif |
|
|
1061 | |
|
|
1062 | #if ecb_cplusplus_does_not_suck |
|
|
1063 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
1064 | template<typename T, int N> |
|
|
1065 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
1066 | { |
|
|
1067 | return N; |
|
|
1068 | } |
|
|
1069 | #else |
|
|
1070 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
1071 | #endif |
|
|
1072 | |
|
|
1073 | /*******************************************************************************/ |
|
|
1074 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1075 | |
|
|
1076 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1077 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1078 | #if 0 \ |
|
|
1079 | || __i386 || __i386__ \ |
|
|
1080 | || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ |
|
|
1081 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1082 | || defined __arm__ && defined __ARM_EABI__ \ |
|
|
1083 | || defined __s390__ || defined __s390x__ \ |
|
|
1084 | || defined __mips__ \ |
|
|
1085 | || defined __alpha__ \ |
|
|
1086 | || defined __hppa__ \ |
|
|
1087 | || defined __ia64__ \ |
|
|
1088 | || defined __m68k__ \ |
|
|
1089 | || defined __m88k__ \ |
|
|
1090 | || defined __sh__ \ |
|
|
1091 | || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \ |
|
|
1092 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) |
|
|
1093 | #define ECB_STDFP 1 |
|
|
1094 | #include <string.h> /* for memcpy */ |
|
|
1095 | #else |
|
|
1096 | #define ECB_STDFP 0 |
|
|
1097 | #endif |
|
|
1098 | |
|
|
1099 | #ifndef ECB_NO_LIBM |
|
|
1100 | |
|
|
1101 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1102 | |
|
|
1103 | /* only the oldest of old doesn't have this one. solaris. */ |
|
|
1104 | #ifdef INFINITY |
|
|
1105 | #define ECB_INFINITY INFINITY |
|
|
1106 | #else |
|
|
1107 | #define ECB_INFINITY HUGE_VAL |
|
|
1108 | #endif |
|
|
1109 | |
|
|
1110 | #ifdef NAN |
|
|
1111 | #define ECB_NAN NAN |
|
|
1112 | #else |
|
|
1113 | #define ECB_NAN ECB_INFINITY |
|
|
1114 | #endif |
|
|
1115 | |
|
|
1116 | /* converts an ieee half/binary16 to a float */ |
|
|
1117 | ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; |
|
|
1118 | ecb_function_ float |
|
|
1119 | ecb_binary16_to_float (uint16_t x) |
|
|
1120 | { |
|
|
1121 | int e = (x >> 10) & 0x1f; |
|
|
1122 | int m = x & 0x3ff; |
|
|
1123 | float r; |
|
|
1124 | |
|
|
1125 | if (!e ) r = ldexpf (m , -24); |
|
|
1126 | else if (e != 31) r = ldexpf (m + 0x400, e - 25); |
|
|
1127 | else if (m ) r = ECB_NAN; |
|
|
1128 | else r = ECB_INFINITY; |
|
|
1129 | |
|
|
1130 | return x & 0x8000 ? -r : r; |
|
|
1131 | } |
|
|
1132 | |
|
|
1133 | /* convert a float to ieee single/binary32 */ |
|
|
1134 | ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; |
|
|
1135 | ecb_function_ uint32_t |
|
|
1136 | ecb_float_to_binary32 (float x) |
|
|
1137 | { |
|
|
1138 | uint32_t r; |
|
|
1139 | |
|
|
1140 | #if ECB_STDFP |
|
|
1141 | memcpy (&r, &x, 4); |
|
|
1142 | #else |
|
|
1143 | /* slow emulation, works for anything but -0 */ |
|
|
1144 | uint32_t m; |
|
|
1145 | int e; |
|
|
1146 | |
|
|
1147 | if (x == 0e0f ) return 0x00000000U; |
|
|
1148 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1149 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1150 | if (x != x ) return 0x7fbfffffU; |
|
|
1151 | |
|
|
1152 | m = frexpf (x, &e) * 0x1000000U; |
|
|
1153 | |
|
|
1154 | r = m & 0x80000000U; |
|
|
1155 | |
|
|
1156 | if (r) |
|
|
1157 | m = -m; |
|
|
1158 | |
|
|
1159 | if (e <= -126) |
|
|
1160 | { |
|
|
1161 | m &= 0xffffffU; |
|
|
1162 | m >>= (-125 - e); |
|
|
1163 | e = -126; |
|
|
1164 | } |
|
|
1165 | |
|
|
1166 | r |= (e + 126) << 23; |
|
|
1167 | r |= m & 0x7fffffU; |
|
|
1168 | #endif |
|
|
1169 | |
|
|
1170 | return r; |
|
|
1171 | } |
|
|
1172 | |
|
|
1173 | /* converts an ieee single/binary32 to a float */ |
|
|
1174 | ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; |
|
|
1175 | ecb_function_ float |
|
|
1176 | ecb_binary32_to_float (uint32_t x) |
|
|
1177 | { |
|
|
1178 | float r; |
|
|
1179 | |
|
|
1180 | #if ECB_STDFP |
|
|
1181 | memcpy (&r, &x, 4); |
|
|
1182 | #else |
|
|
1183 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1184 | int neg = x >> 31; |
|
|
1185 | int e = (x >> 23) & 0xffU; |
|
|
1186 | |
|
|
1187 | x &= 0x7fffffU; |
|
|
1188 | |
|
|
1189 | if (e) |
|
|
1190 | x |= 0x800000U; |
|
|
1191 | else |
|
|
1192 | e = 1; |
|
|
1193 | |
|
|
1194 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1195 | r = ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1196 | |
|
|
1197 | r = neg ? -r : r; |
|
|
1198 | #endif |
|
|
1199 | |
|
|
1200 | return r; |
|
|
1201 | } |
|
|
1202 | |
|
|
1203 | /* convert a double to ieee double/binary64 */ |
|
|
1204 | ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; |
|
|
1205 | ecb_function_ uint64_t |
|
|
1206 | ecb_double_to_binary64 (double x) |
|
|
1207 | { |
|
|
1208 | uint64_t r; |
|
|
1209 | |
|
|
1210 | #if ECB_STDFP |
|
|
1211 | memcpy (&r, &x, 8); |
|
|
1212 | #else |
|
|
1213 | /* slow emulation, works for anything but -0 */ |
|
|
1214 | uint64_t m; |
|
|
1215 | int e; |
|
|
1216 | |
|
|
1217 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1218 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1219 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1220 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1221 | |
|
|
1222 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1223 | |
|
|
1224 | r = m & 0x8000000000000000;; |
|
|
1225 | |
|
|
1226 | if (r) |
|
|
1227 | m = -m; |
|
|
1228 | |
|
|
1229 | if (e <= -1022) |
|
|
1230 | { |
|
|
1231 | m &= 0x1fffffffffffffU; |
|
|
1232 | m >>= (-1021 - e); |
|
|
1233 | e = -1022; |
|
|
1234 | } |
|
|
1235 | |
|
|
1236 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1237 | r |= m & 0xfffffffffffffU; |
|
|
1238 | #endif |
|
|
1239 | |
|
|
1240 | return r; |
|
|
1241 | } |
|
|
1242 | |
|
|
1243 | /* converts an ieee double/binary64 to a double */ |
|
|
1244 | ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; |
|
|
1245 | ecb_function_ double |
|
|
1246 | ecb_binary64_to_double (uint64_t x) |
|
|
1247 | { |
|
|
1248 | double r; |
|
|
1249 | |
|
|
1250 | #if ECB_STDFP |
|
|
1251 | memcpy (&r, &x, 8); |
|
|
1252 | #else |
|
|
1253 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1254 | int neg = x >> 63; |
|
|
1255 | int e = (x >> 52) & 0x7ffU; |
|
|
1256 | |
|
|
1257 | x &= 0xfffffffffffffU; |
|
|
1258 | |
|
|
1259 | if (e) |
|
|
1260 | x |= 0x10000000000000U; |
|
|
1261 | else |
|
|
1262 | e = 1; |
|
|
1263 | |
|
|
1264 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1265 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1266 | |
|
|
1267 | r = neg ? -r : r; |
|
|
1268 | #endif |
|
|
1269 | |
|
|
1270 | return r; |
|
|
1271 | } |
|
|
1272 | |
|
|
1273 | #endif |
|
|
1274 | |
|
|
1275 | #endif |
|
|
1276 | |
|
|
1277 | /* ECB.H END */ |
|
|
1278 | |
|
|
1279 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
1280 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
1281 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
1282 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
|
|
1283 | * libev, in which cases the memory fences become nops. |
|
|
1284 | * alternatively, you can remove this #error and link against libpthread, |
|
|
1285 | * which will then provide the memory fences. |
|
|
1286 | */ |
|
|
1287 | # error "memory fences not defined for your architecture, please report" |
|
|
1288 | #endif |
|
|
1289 | |
|
|
1290 | #ifndef ECB_MEMORY_FENCE |
|
|
1291 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
1292 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
1293 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
1294 | #endif |
|
|
1295 | |
|
|
1296 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
1297 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
1298 | #define noinline ecb_noinline |
|
|
1299 | |
475 | #define inline_size static inline |
1300 | #define inline_size ecb_inline |
476 | |
1301 | |
477 | #if EV_FEATURE_CODE |
1302 | #if EV_FEATURE_CODE |
478 | # define inline_speed static inline |
1303 | # define inline_speed ecb_inline |
479 | #else |
1304 | #else |
480 | # define inline_speed static noinline |
1305 | # define inline_speed static noinline |
481 | #endif |
1306 | #endif |
482 | |
1307 | |
483 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1308 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
… | |
… | |
522 | # include "ev_win32.c" |
1347 | # include "ev_win32.c" |
523 | #endif |
1348 | #endif |
524 | |
1349 | |
525 | /*****************************************************************************/ |
1350 | /*****************************************************************************/ |
526 | |
1351 | |
|
|
1352 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
1353 | |
|
|
1354 | #if EV_USE_FLOOR |
|
|
1355 | # include <math.h> |
|
|
1356 | # define ev_floor(v) floor (v) |
|
|
1357 | #else |
|
|
1358 | |
|
|
1359 | #include <float.h> |
|
|
1360 | |
|
|
1361 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1362 | static ev_tstamp noinline |
|
|
1363 | ev_floor (ev_tstamp v) |
|
|
1364 | { |
|
|
1365 | /* the choice of shift factor is not terribly important */ |
|
|
1366 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
1367 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
1368 | #else |
|
|
1369 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
1370 | #endif |
|
|
1371 | |
|
|
1372 | /* argument too large for an unsigned long? */ |
|
|
1373 | if (expect_false (v >= shift)) |
|
|
1374 | { |
|
|
1375 | ev_tstamp f; |
|
|
1376 | |
|
|
1377 | if (v == v - 1.) |
|
|
1378 | return v; /* very large number */ |
|
|
1379 | |
|
|
1380 | f = shift * ev_floor (v * (1. / shift)); |
|
|
1381 | return f + ev_floor (v - f); |
|
|
1382 | } |
|
|
1383 | |
|
|
1384 | /* special treatment for negative args? */ |
|
|
1385 | if (expect_false (v < 0.)) |
|
|
1386 | { |
|
|
1387 | ev_tstamp f = -ev_floor (-v); |
|
|
1388 | |
|
|
1389 | return f - (f == v ? 0 : 1); |
|
|
1390 | } |
|
|
1391 | |
|
|
1392 | /* fits into an unsigned long */ |
|
|
1393 | return (unsigned long)v; |
|
|
1394 | } |
|
|
1395 | |
|
|
1396 | #endif |
|
|
1397 | |
|
|
1398 | /*****************************************************************************/ |
|
|
1399 | |
527 | #ifdef __linux |
1400 | #ifdef __linux |
528 | # include <sys/utsname.h> |
1401 | # include <sys/utsname.h> |
529 | #endif |
1402 | #endif |
530 | |
1403 | |
531 | static unsigned int noinline |
1404 | static unsigned int noinline ecb_cold |
532 | ev_linux_version (void) |
1405 | ev_linux_version (void) |
533 | { |
1406 | { |
534 | #ifdef __linux |
1407 | #ifdef __linux |
535 | unsigned int v = 0; |
1408 | unsigned int v = 0; |
536 | struct utsname buf; |
1409 | struct utsname buf; |
… | |
… | |
565 | } |
1438 | } |
566 | |
1439 | |
567 | /*****************************************************************************/ |
1440 | /*****************************************************************************/ |
568 | |
1441 | |
569 | #if EV_AVOID_STDIO |
1442 | #if EV_AVOID_STDIO |
570 | static void noinline |
1443 | static void noinline ecb_cold |
571 | ev_printerr (const char *msg) |
1444 | ev_printerr (const char *msg) |
572 | { |
1445 | { |
573 | write (STDERR_FILENO, msg, strlen (msg)); |
1446 | write (STDERR_FILENO, msg, strlen (msg)); |
574 | } |
1447 | } |
575 | #endif |
1448 | #endif |
576 | |
1449 | |
577 | static void (*syserr_cb)(const char *msg); |
1450 | static void (*syserr_cb)(const char *msg) EV_THROW; |
578 | |
1451 | |
579 | void |
1452 | void ecb_cold |
580 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1453 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
581 | { |
1454 | { |
582 | syserr_cb = cb; |
1455 | syserr_cb = cb; |
583 | } |
1456 | } |
584 | |
1457 | |
585 | static void noinline |
1458 | static void noinline ecb_cold |
586 | ev_syserr (const char *msg) |
1459 | ev_syserr (const char *msg) |
587 | { |
1460 | { |
588 | if (!msg) |
1461 | if (!msg) |
589 | msg = "(libev) system error"; |
1462 | msg = "(libev) system error"; |
590 | |
1463 | |
… | |
… | |
603 | abort (); |
1476 | abort (); |
604 | } |
1477 | } |
605 | } |
1478 | } |
606 | |
1479 | |
607 | static void * |
1480 | static void * |
608 | ev_realloc_emul (void *ptr, long size) |
1481 | ev_realloc_emul (void *ptr, long size) EV_THROW |
609 | { |
1482 | { |
610 | #if __GLIBC__ |
|
|
611 | return realloc (ptr, size); |
|
|
612 | #else |
|
|
613 | /* some systems, notably openbsd and darwin, fail to properly |
1483 | /* some systems, notably openbsd and darwin, fail to properly |
614 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1484 | * implement realloc (x, 0) (as required by both ansi c-89 and |
615 | * the single unix specification, so work around them here. |
1485 | * the single unix specification, so work around them here. |
|
|
1486 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1487 | * despite documenting it otherwise. |
616 | */ |
1488 | */ |
617 | |
1489 | |
618 | if (size) |
1490 | if (size) |
619 | return realloc (ptr, size); |
1491 | return realloc (ptr, size); |
620 | |
1492 | |
621 | free (ptr); |
1493 | free (ptr); |
622 | return 0; |
1494 | return 0; |
623 | #endif |
|
|
624 | } |
1495 | } |
625 | |
1496 | |
626 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1497 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
627 | |
1498 | |
628 | void |
1499 | void ecb_cold |
629 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1500 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
630 | { |
1501 | { |
631 | alloc = cb; |
1502 | alloc = cb; |
632 | } |
1503 | } |
633 | |
1504 | |
634 | inline_speed void * |
1505 | inline_speed void * |
… | |
… | |
722 | #undef VAR |
1593 | #undef VAR |
723 | }; |
1594 | }; |
724 | #include "ev_wrap.h" |
1595 | #include "ev_wrap.h" |
725 | |
1596 | |
726 | static struct ev_loop default_loop_struct; |
1597 | static struct ev_loop default_loop_struct; |
727 | struct ev_loop *ev_default_loop_ptr; |
1598 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
728 | |
1599 | |
729 | #else |
1600 | #else |
730 | |
1601 | |
731 | ev_tstamp ev_rt_now; |
1602 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
732 | #define VAR(name,decl) static decl; |
1603 | #define VAR(name,decl) static decl; |
733 | #include "ev_vars.h" |
1604 | #include "ev_vars.h" |
734 | #undef VAR |
1605 | #undef VAR |
735 | |
1606 | |
736 | static int ev_default_loop_ptr; |
1607 | static int ev_default_loop_ptr; |
… | |
… | |
751 | |
1622 | |
752 | /*****************************************************************************/ |
1623 | /*****************************************************************************/ |
753 | |
1624 | |
754 | #ifndef EV_HAVE_EV_TIME |
1625 | #ifndef EV_HAVE_EV_TIME |
755 | ev_tstamp |
1626 | ev_tstamp |
756 | ev_time (void) |
1627 | ev_time (void) EV_THROW |
757 | { |
1628 | { |
758 | #if EV_USE_REALTIME |
1629 | #if EV_USE_REALTIME |
759 | if (expect_true (have_realtime)) |
1630 | if (expect_true (have_realtime)) |
760 | { |
1631 | { |
761 | struct timespec ts; |
1632 | struct timespec ts; |
… | |
… | |
785 | return ev_time (); |
1656 | return ev_time (); |
786 | } |
1657 | } |
787 | |
1658 | |
788 | #if EV_MULTIPLICITY |
1659 | #if EV_MULTIPLICITY |
789 | ev_tstamp |
1660 | ev_tstamp |
790 | ev_now (EV_P) |
1661 | ev_now (EV_P) EV_THROW |
791 | { |
1662 | { |
792 | return ev_rt_now; |
1663 | return ev_rt_now; |
793 | } |
1664 | } |
794 | #endif |
1665 | #endif |
795 | |
1666 | |
796 | void |
1667 | void |
797 | ev_sleep (ev_tstamp delay) |
1668 | ev_sleep (ev_tstamp delay) EV_THROW |
798 | { |
1669 | { |
799 | if (delay > 0.) |
1670 | if (delay > 0.) |
800 | { |
1671 | { |
801 | #if EV_USE_NANOSLEEP |
1672 | #if EV_USE_NANOSLEEP |
802 | struct timespec ts; |
1673 | struct timespec ts; |
803 | |
1674 | |
804 | EV_TS_SET (ts, delay); |
1675 | EV_TS_SET (ts, delay); |
805 | nanosleep (&ts, 0); |
1676 | nanosleep (&ts, 0); |
806 | #elif defined(_WIN32) |
1677 | #elif defined _WIN32 |
807 | Sleep ((unsigned long)(delay * 1e3)); |
1678 | Sleep ((unsigned long)(delay * 1e3)); |
808 | #else |
1679 | #else |
809 | struct timeval tv; |
1680 | struct timeval tv; |
810 | |
1681 | |
811 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1682 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
… | |
… | |
815 | select (0, 0, 0, 0, &tv); |
1686 | select (0, 0, 0, 0, &tv); |
816 | #endif |
1687 | #endif |
817 | } |
1688 | } |
818 | } |
1689 | } |
819 | |
1690 | |
820 | inline_speed int |
|
|
821 | ev_timeout_to_ms (ev_tstamp timeout) |
|
|
822 | { |
|
|
823 | int ms = timeout * 1000. + .999999; |
|
|
824 | |
|
|
825 | return expect_true (ms) ? ms : timeout < 1e-6 ? 0 : 1; |
|
|
826 | } |
|
|
827 | |
|
|
828 | /*****************************************************************************/ |
1691 | /*****************************************************************************/ |
829 | |
1692 | |
830 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
1693 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
831 | |
1694 | |
832 | /* find a suitable new size for the given array, */ |
1695 | /* find a suitable new size for the given array, */ |
… | |
… | |
838 | |
1701 | |
839 | do |
1702 | do |
840 | ncur <<= 1; |
1703 | ncur <<= 1; |
841 | while (cnt > ncur); |
1704 | while (cnt > ncur); |
842 | |
1705 | |
843 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
1706 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
844 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1707 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
845 | { |
1708 | { |
846 | ncur *= elem; |
1709 | ncur *= elem; |
847 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1710 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
848 | ncur = ncur - sizeof (void *) * 4; |
1711 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
850 | } |
1713 | } |
851 | |
1714 | |
852 | return ncur; |
1715 | return ncur; |
853 | } |
1716 | } |
854 | |
1717 | |
855 | static noinline void * |
1718 | static void * noinline ecb_cold |
856 | array_realloc (int elem, void *base, int *cur, int cnt) |
1719 | array_realloc (int elem, void *base, int *cur, int cnt) |
857 | { |
1720 | { |
858 | *cur = array_nextsize (elem, *cur, cnt); |
1721 | *cur = array_nextsize (elem, *cur, cnt); |
859 | return ev_realloc (base, elem * *cur); |
1722 | return ev_realloc (base, elem * *cur); |
860 | } |
1723 | } |
… | |
… | |
863 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1726 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
864 | |
1727 | |
865 | #define array_needsize(type,base,cur,cnt,init) \ |
1728 | #define array_needsize(type,base,cur,cnt,init) \ |
866 | if (expect_false ((cnt) > (cur))) \ |
1729 | if (expect_false ((cnt) > (cur))) \ |
867 | { \ |
1730 | { \ |
868 | int ocur_ = (cur); \ |
1731 | int ecb_unused ocur_ = (cur); \ |
869 | (base) = (type *)array_realloc \ |
1732 | (base) = (type *)array_realloc \ |
870 | (sizeof (type), (base), &(cur), (cnt)); \ |
1733 | (sizeof (type), (base), &(cur), (cnt)); \ |
871 | init ((base) + (ocur_), (cur) - ocur_); \ |
1734 | init ((base) + (ocur_), (cur) - ocur_); \ |
872 | } |
1735 | } |
873 | |
1736 | |
… | |
… | |
891 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1754 | pendingcb (EV_P_ ev_prepare *w, int revents) |
892 | { |
1755 | { |
893 | } |
1756 | } |
894 | |
1757 | |
895 | void noinline |
1758 | void noinline |
896 | ev_feed_event (EV_P_ void *w, int revents) |
1759 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
897 | { |
1760 | { |
898 | W w_ = (W)w; |
1761 | W w_ = (W)w; |
899 | int pri = ABSPRI (w_); |
1762 | int pri = ABSPRI (w_); |
900 | |
1763 | |
901 | if (expect_false (w_->pending)) |
1764 | if (expect_false (w_->pending)) |
… | |
… | |
905 | w_->pending = ++pendingcnt [pri]; |
1768 | w_->pending = ++pendingcnt [pri]; |
906 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
1769 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
907 | pendings [pri][w_->pending - 1].w = w_; |
1770 | pendings [pri][w_->pending - 1].w = w_; |
908 | pendings [pri][w_->pending - 1].events = revents; |
1771 | pendings [pri][w_->pending - 1].events = revents; |
909 | } |
1772 | } |
|
|
1773 | |
|
|
1774 | pendingpri = NUMPRI - 1; |
910 | } |
1775 | } |
911 | |
1776 | |
912 | inline_speed void |
1777 | inline_speed void |
913 | feed_reverse (EV_P_ W w) |
1778 | feed_reverse (EV_P_ W w) |
914 | { |
1779 | { |
… | |
… | |
960 | if (expect_true (!anfd->reify)) |
1825 | if (expect_true (!anfd->reify)) |
961 | fd_event_nocheck (EV_A_ fd, revents); |
1826 | fd_event_nocheck (EV_A_ fd, revents); |
962 | } |
1827 | } |
963 | |
1828 | |
964 | void |
1829 | void |
965 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1830 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
966 | { |
1831 | { |
967 | if (fd >= 0 && fd < anfdmax) |
1832 | if (fd >= 0 && fd < anfdmax) |
968 | fd_event_nocheck (EV_A_ fd, revents); |
1833 | fd_event_nocheck (EV_A_ fd, revents); |
969 | } |
1834 | } |
970 | |
1835 | |
… | |
… | |
973 | inline_size void |
1838 | inline_size void |
974 | fd_reify (EV_P) |
1839 | fd_reify (EV_P) |
975 | { |
1840 | { |
976 | int i; |
1841 | int i; |
977 | |
1842 | |
|
|
1843 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
1844 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1845 | { |
|
|
1846 | int fd = fdchanges [i]; |
|
|
1847 | ANFD *anfd = anfds + fd; |
|
|
1848 | |
|
|
1849 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
1850 | { |
|
|
1851 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
1852 | |
|
|
1853 | if (handle != anfd->handle) |
|
|
1854 | { |
|
|
1855 | unsigned long arg; |
|
|
1856 | |
|
|
1857 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
1858 | |
|
|
1859 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
1860 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
1861 | anfd->events = 0; |
|
|
1862 | anfd->handle = handle; |
|
|
1863 | } |
|
|
1864 | } |
|
|
1865 | } |
|
|
1866 | #endif |
|
|
1867 | |
978 | for (i = 0; i < fdchangecnt; ++i) |
1868 | for (i = 0; i < fdchangecnt; ++i) |
979 | { |
1869 | { |
980 | int fd = fdchanges [i]; |
1870 | int fd = fdchanges [i]; |
981 | ANFD *anfd = anfds + fd; |
1871 | ANFD *anfd = anfds + fd; |
982 | ev_io *w; |
1872 | ev_io *w; |
… | |
… | |
984 | unsigned char o_events = anfd->events; |
1874 | unsigned char o_events = anfd->events; |
985 | unsigned char o_reify = anfd->reify; |
1875 | unsigned char o_reify = anfd->reify; |
986 | |
1876 | |
987 | anfd->reify = 0; |
1877 | anfd->reify = 0; |
988 | |
1878 | |
989 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
990 | if (o_reify & EV__IOFDSET) |
|
|
991 | { |
|
|
992 | unsigned long arg; |
|
|
993 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
994 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
|
|
995 | printf ("oi %d %x\n", fd, anfd->handle);//D |
|
|
996 | } |
|
|
997 | #endif |
|
|
998 | |
|
|
999 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
1879 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
1000 | { |
1880 | { |
1001 | anfd->events = 0; |
1881 | anfd->events = 0; |
1002 | |
1882 | |
1003 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1883 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
1028 | fdchanges [fdchangecnt - 1] = fd; |
1908 | fdchanges [fdchangecnt - 1] = fd; |
1029 | } |
1909 | } |
1030 | } |
1910 | } |
1031 | |
1911 | |
1032 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1912 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1033 | inline_speed void |
1913 | inline_speed void ecb_cold |
1034 | fd_kill (EV_P_ int fd) |
1914 | fd_kill (EV_P_ int fd) |
1035 | { |
1915 | { |
1036 | ev_io *w; |
1916 | ev_io *w; |
1037 | |
1917 | |
1038 | while ((w = (ev_io *)anfds [fd].head)) |
1918 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1041 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1921 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1042 | } |
1922 | } |
1043 | } |
1923 | } |
1044 | |
1924 | |
1045 | /* check whether the given fd is actually valid, for error recovery */ |
1925 | /* check whether the given fd is actually valid, for error recovery */ |
1046 | inline_size int |
1926 | inline_size int ecb_cold |
1047 | fd_valid (int fd) |
1927 | fd_valid (int fd) |
1048 | { |
1928 | { |
1049 | #ifdef _WIN32 |
1929 | #ifdef _WIN32 |
1050 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1930 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1051 | #else |
1931 | #else |
1052 | return fcntl (fd, F_GETFD) != -1; |
1932 | return fcntl (fd, F_GETFD) != -1; |
1053 | #endif |
1933 | #endif |
1054 | } |
1934 | } |
1055 | |
1935 | |
1056 | /* called on EBADF to verify fds */ |
1936 | /* called on EBADF to verify fds */ |
1057 | static void noinline |
1937 | static void noinline ecb_cold |
1058 | fd_ebadf (EV_P) |
1938 | fd_ebadf (EV_P) |
1059 | { |
1939 | { |
1060 | int fd; |
1940 | int fd; |
1061 | |
1941 | |
1062 | for (fd = 0; fd < anfdmax; ++fd) |
1942 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1064 | if (!fd_valid (fd) && errno == EBADF) |
1944 | if (!fd_valid (fd) && errno == EBADF) |
1065 | fd_kill (EV_A_ fd); |
1945 | fd_kill (EV_A_ fd); |
1066 | } |
1946 | } |
1067 | |
1947 | |
1068 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1948 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1069 | static void noinline |
1949 | static void noinline ecb_cold |
1070 | fd_enomem (EV_P) |
1950 | fd_enomem (EV_P) |
1071 | { |
1951 | { |
1072 | int fd; |
1952 | int fd; |
1073 | |
1953 | |
1074 | for (fd = anfdmax; fd--; ) |
1954 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1269 | |
2149 | |
1270 | /*****************************************************************************/ |
2150 | /*****************************************************************************/ |
1271 | |
2151 | |
1272 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2152 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1273 | |
2153 | |
1274 | static void noinline |
2154 | static void noinline ecb_cold |
1275 | evpipe_init (EV_P) |
2155 | evpipe_init (EV_P) |
1276 | { |
2156 | { |
1277 | if (!ev_is_active (&pipe_w)) |
2157 | if (!ev_is_active (&pipe_w)) |
1278 | { |
2158 | { |
|
|
2159 | int fds [2]; |
|
|
2160 | |
1279 | # if EV_USE_EVENTFD |
2161 | # if EV_USE_EVENTFD |
|
|
2162 | fds [0] = -1; |
1280 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2163 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1281 | if (evfd < 0 && errno == EINVAL) |
2164 | if (fds [1] < 0 && errno == EINVAL) |
1282 | evfd = eventfd (0, 0); |
2165 | fds [1] = eventfd (0, 0); |
1283 | |
2166 | |
1284 | if (evfd >= 0) |
2167 | if (fds [1] < 0) |
|
|
2168 | # endif |
1285 | { |
2169 | { |
|
|
2170 | while (pipe (fds)) |
|
|
2171 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2172 | |
|
|
2173 | fd_intern (fds [0]); |
|
|
2174 | } |
|
|
2175 | |
1286 | evpipe [0] = -1; |
2176 | evpipe [0] = fds [0]; |
1287 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
2177 | |
1288 | ev_io_set (&pipe_w, evfd, EV_READ); |
2178 | if (evpipe [1] < 0) |
|
|
2179 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2180 | else |
|
|
2181 | { |
|
|
2182 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2183 | /* so that evpipe_write can always rely on its value. */ |
|
|
2184 | /* this branch does not do anything sensible on windows, */ |
|
|
2185 | /* so must not be executed on windows */ |
|
|
2186 | |
|
|
2187 | dup2 (fds [1], evpipe [1]); |
|
|
2188 | close (fds [1]); |
|
|
2189 | } |
|
|
2190 | |
|
|
2191 | fd_intern (evpipe [1]); |
|
|
2192 | |
|
|
2193 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2194 | ev_io_start (EV_A_ &pipe_w); |
|
|
2195 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2196 | } |
|
|
2197 | } |
|
|
2198 | |
|
|
2199 | inline_speed void |
|
|
2200 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
2201 | { |
|
|
2202 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
|
|
2203 | |
|
|
2204 | if (expect_true (*flag)) |
|
|
2205 | return; |
|
|
2206 | |
|
|
2207 | *flag = 1; |
|
|
2208 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2209 | |
|
|
2210 | pipe_write_skipped = 1; |
|
|
2211 | |
|
|
2212 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2213 | |
|
|
2214 | if (pipe_write_wanted) |
|
|
2215 | { |
|
|
2216 | int old_errno; |
|
|
2217 | |
|
|
2218 | pipe_write_skipped = 0; |
|
|
2219 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2220 | |
|
|
2221 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2222 | |
|
|
2223 | #if EV_USE_EVENTFD |
|
|
2224 | if (evpipe [0] < 0) |
|
|
2225 | { |
|
|
2226 | uint64_t counter = 1; |
|
|
2227 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1289 | } |
2228 | } |
1290 | else |
2229 | else |
1291 | # endif |
2230 | #endif |
1292 | { |
2231 | { |
1293 | while (pipe (evpipe)) |
2232 | #ifdef _WIN32 |
1294 | ev_syserr ("(libev) error creating signal/async pipe"); |
2233 | WSABUF buf; |
1295 | |
2234 | DWORD sent; |
1296 | fd_intern (evpipe [0]); |
2235 | buf.buf = &buf; |
1297 | fd_intern (evpipe [1]); |
2236 | buf.len = 1; |
1298 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
2237 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
|
|
2238 | #else |
|
|
2239 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2240 | #endif |
1299 | } |
2241 | } |
1300 | |
|
|
1301 | ev_io_start (EV_A_ &pipe_w); |
|
|
1302 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1303 | } |
|
|
1304 | } |
|
|
1305 | |
|
|
1306 | inline_size void |
|
|
1307 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1308 | { |
|
|
1309 | if (!*flag) |
|
|
1310 | { |
|
|
1311 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1312 | char dummy; |
|
|
1313 | |
|
|
1314 | *flag = 1; |
|
|
1315 | |
|
|
1316 | #if EV_USE_EVENTFD |
|
|
1317 | if (evfd >= 0) |
|
|
1318 | { |
|
|
1319 | uint64_t counter = 1; |
|
|
1320 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1321 | } |
|
|
1322 | else |
|
|
1323 | #endif |
|
|
1324 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1325 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1326 | /* so when you think this write should be a send instead, please find out */ |
|
|
1327 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1328 | /* tell me. thank you. */ |
|
|
1329 | write (evpipe [1], &dummy, 1); |
|
|
1330 | |
2242 | |
1331 | errno = old_errno; |
2243 | errno = old_errno; |
1332 | } |
2244 | } |
1333 | } |
2245 | } |
1334 | |
2246 | |
… | |
… | |
1337 | static void |
2249 | static void |
1338 | pipecb (EV_P_ ev_io *iow, int revents) |
2250 | pipecb (EV_P_ ev_io *iow, int revents) |
1339 | { |
2251 | { |
1340 | int i; |
2252 | int i; |
1341 | |
2253 | |
|
|
2254 | if (revents & EV_READ) |
|
|
2255 | { |
1342 | #if EV_USE_EVENTFD |
2256 | #if EV_USE_EVENTFD |
1343 | if (evfd >= 0) |
2257 | if (evpipe [0] < 0) |
1344 | { |
2258 | { |
1345 | uint64_t counter; |
2259 | uint64_t counter; |
1346 | read (evfd, &counter, sizeof (uint64_t)); |
2260 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1347 | } |
2261 | } |
1348 | else |
2262 | else |
1349 | #endif |
2263 | #endif |
1350 | { |
2264 | { |
1351 | char dummy; |
2265 | char dummy[4]; |
1352 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
2266 | #ifdef _WIN32 |
|
|
2267 | WSABUF buf; |
|
|
2268 | DWORD recvd; |
|
|
2269 | DWORD flags = 0; |
|
|
2270 | buf.buf = dummy; |
|
|
2271 | buf.len = sizeof (dummy); |
|
|
2272 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2273 | #else |
1353 | read (evpipe [0], &dummy, 1); |
2274 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2275 | #endif |
|
|
2276 | } |
1354 | } |
2277 | } |
|
|
2278 | |
|
|
2279 | pipe_write_skipped = 0; |
|
|
2280 | |
|
|
2281 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
1355 | |
2282 | |
1356 | #if EV_SIGNAL_ENABLE |
2283 | #if EV_SIGNAL_ENABLE |
1357 | if (sig_pending) |
2284 | if (sig_pending) |
1358 | { |
2285 | { |
1359 | sig_pending = 0; |
2286 | sig_pending = 0; |
|
|
2287 | |
|
|
2288 | ECB_MEMORY_FENCE; |
1360 | |
2289 | |
1361 | for (i = EV_NSIG - 1; i--; ) |
2290 | for (i = EV_NSIG - 1; i--; ) |
1362 | if (expect_false (signals [i].pending)) |
2291 | if (expect_false (signals [i].pending)) |
1363 | ev_feed_signal_event (EV_A_ i + 1); |
2292 | ev_feed_signal_event (EV_A_ i + 1); |
1364 | } |
2293 | } |
… | |
… | |
1366 | |
2295 | |
1367 | #if EV_ASYNC_ENABLE |
2296 | #if EV_ASYNC_ENABLE |
1368 | if (async_pending) |
2297 | if (async_pending) |
1369 | { |
2298 | { |
1370 | async_pending = 0; |
2299 | async_pending = 0; |
|
|
2300 | |
|
|
2301 | ECB_MEMORY_FENCE; |
1371 | |
2302 | |
1372 | for (i = asynccnt; i--; ) |
2303 | for (i = asynccnt; i--; ) |
1373 | if (asyncs [i]->sent) |
2304 | if (asyncs [i]->sent) |
1374 | { |
2305 | { |
1375 | asyncs [i]->sent = 0; |
2306 | asyncs [i]->sent = 0; |
|
|
2307 | ECB_MEMORY_FENCE_RELEASE; |
1376 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2308 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1377 | } |
2309 | } |
1378 | } |
2310 | } |
1379 | #endif |
2311 | #endif |
1380 | } |
2312 | } |
1381 | |
2313 | |
1382 | /*****************************************************************************/ |
2314 | /*****************************************************************************/ |
1383 | |
2315 | |
1384 | void |
2316 | void |
1385 | ev_feed_signal (int signum) |
2317 | ev_feed_signal (int signum) EV_THROW |
1386 | { |
2318 | { |
1387 | #if EV_MULTIPLICITY |
2319 | #if EV_MULTIPLICITY |
|
|
2320 | EV_P; |
|
|
2321 | ECB_MEMORY_FENCE_ACQUIRE; |
1388 | EV_P = signals [signum - 1].loop; |
2322 | EV_A = signals [signum - 1].loop; |
1389 | |
2323 | |
1390 | if (!EV_A) |
2324 | if (!EV_A) |
1391 | return; |
2325 | return; |
1392 | #endif |
2326 | #endif |
1393 | |
2327 | |
… | |
… | |
1404 | |
2338 | |
1405 | ev_feed_signal (signum); |
2339 | ev_feed_signal (signum); |
1406 | } |
2340 | } |
1407 | |
2341 | |
1408 | void noinline |
2342 | void noinline |
1409 | ev_feed_signal_event (EV_P_ int signum) |
2343 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
1410 | { |
2344 | { |
1411 | WL w; |
2345 | WL w; |
1412 | |
2346 | |
1413 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2347 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
1414 | return; |
2348 | return; |
1415 | |
2349 | |
1416 | --signum; |
2350 | --signum; |
1417 | |
2351 | |
1418 | #if EV_MULTIPLICITY |
2352 | #if EV_MULTIPLICITY |
… | |
… | |
1422 | if (expect_false (signals [signum].loop != EV_A)) |
2356 | if (expect_false (signals [signum].loop != EV_A)) |
1423 | return; |
2357 | return; |
1424 | #endif |
2358 | #endif |
1425 | |
2359 | |
1426 | signals [signum].pending = 0; |
2360 | signals [signum].pending = 0; |
|
|
2361 | ECB_MEMORY_FENCE_RELEASE; |
1427 | |
2362 | |
1428 | for (w = signals [signum].head; w; w = w->next) |
2363 | for (w = signals [signum].head; w; w = w->next) |
1429 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2364 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1430 | } |
2365 | } |
1431 | |
2366 | |
… | |
… | |
1529 | #endif |
2464 | #endif |
1530 | #if EV_USE_SELECT |
2465 | #if EV_USE_SELECT |
1531 | # include "ev_select.c" |
2466 | # include "ev_select.c" |
1532 | #endif |
2467 | #endif |
1533 | |
2468 | |
1534 | int |
2469 | int ecb_cold |
1535 | ev_version_major (void) |
2470 | ev_version_major (void) EV_THROW |
1536 | { |
2471 | { |
1537 | return EV_VERSION_MAJOR; |
2472 | return EV_VERSION_MAJOR; |
1538 | } |
2473 | } |
1539 | |
2474 | |
1540 | int |
2475 | int ecb_cold |
1541 | ev_version_minor (void) |
2476 | ev_version_minor (void) EV_THROW |
1542 | { |
2477 | { |
1543 | return EV_VERSION_MINOR; |
2478 | return EV_VERSION_MINOR; |
1544 | } |
2479 | } |
1545 | |
2480 | |
1546 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2481 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1547 | int inline_size |
2482 | int inline_size ecb_cold |
1548 | enable_secure (void) |
2483 | enable_secure (void) |
1549 | { |
2484 | { |
1550 | #ifdef _WIN32 |
2485 | #ifdef _WIN32 |
1551 | return 0; |
2486 | return 0; |
1552 | #else |
2487 | #else |
1553 | return getuid () != geteuid () |
2488 | return getuid () != geteuid () |
1554 | || getgid () != getegid (); |
2489 | || getgid () != getegid (); |
1555 | #endif |
2490 | #endif |
1556 | } |
2491 | } |
1557 | |
2492 | |
1558 | unsigned int |
2493 | unsigned int ecb_cold |
1559 | ev_supported_backends (void) |
2494 | ev_supported_backends (void) EV_THROW |
1560 | { |
2495 | { |
1561 | unsigned int flags = 0; |
2496 | unsigned int flags = 0; |
1562 | |
2497 | |
1563 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2498 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1564 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2499 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
… | |
… | |
1567 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2502 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
1568 | |
2503 | |
1569 | return flags; |
2504 | return flags; |
1570 | } |
2505 | } |
1571 | |
2506 | |
1572 | unsigned int |
2507 | unsigned int ecb_cold |
1573 | ev_recommended_backends (void) |
2508 | ev_recommended_backends (void) EV_THROW |
1574 | { |
2509 | { |
1575 | unsigned int flags = ev_supported_backends (); |
2510 | unsigned int flags = ev_supported_backends (); |
1576 | |
2511 | |
1577 | #ifndef __NetBSD__ |
2512 | #ifndef __NetBSD__ |
1578 | /* kqueue is borked on everything but netbsd apparently */ |
2513 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
1589 | #endif |
2524 | #endif |
1590 | |
2525 | |
1591 | return flags; |
2526 | return flags; |
1592 | } |
2527 | } |
1593 | |
2528 | |
1594 | unsigned int |
2529 | unsigned int ecb_cold |
1595 | ev_embeddable_backends (void) |
2530 | ev_embeddable_backends (void) EV_THROW |
1596 | { |
2531 | { |
1597 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2532 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1598 | |
2533 | |
1599 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2534 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1600 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
2535 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
… | |
… | |
1602 | |
2537 | |
1603 | return flags; |
2538 | return flags; |
1604 | } |
2539 | } |
1605 | |
2540 | |
1606 | unsigned int |
2541 | unsigned int |
1607 | ev_backend (EV_P) |
2542 | ev_backend (EV_P) EV_THROW |
1608 | { |
2543 | { |
1609 | return backend; |
2544 | return backend; |
1610 | } |
2545 | } |
1611 | |
2546 | |
1612 | #if EV_FEATURE_API |
2547 | #if EV_FEATURE_API |
1613 | unsigned int |
2548 | unsigned int |
1614 | ev_iteration (EV_P) |
2549 | ev_iteration (EV_P) EV_THROW |
1615 | { |
2550 | { |
1616 | return loop_count; |
2551 | return loop_count; |
1617 | } |
2552 | } |
1618 | |
2553 | |
1619 | unsigned int |
2554 | unsigned int |
1620 | ev_depth (EV_P) |
2555 | ev_depth (EV_P) EV_THROW |
1621 | { |
2556 | { |
1622 | return loop_depth; |
2557 | return loop_depth; |
1623 | } |
2558 | } |
1624 | |
2559 | |
1625 | void |
2560 | void |
1626 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2561 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1627 | { |
2562 | { |
1628 | io_blocktime = interval; |
2563 | io_blocktime = interval; |
1629 | } |
2564 | } |
1630 | |
2565 | |
1631 | void |
2566 | void |
1632 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2567 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1633 | { |
2568 | { |
1634 | timeout_blocktime = interval; |
2569 | timeout_blocktime = interval; |
1635 | } |
2570 | } |
1636 | |
2571 | |
1637 | void |
2572 | void |
1638 | ev_set_userdata (EV_P_ void *data) |
2573 | ev_set_userdata (EV_P_ void *data) EV_THROW |
1639 | { |
2574 | { |
1640 | userdata = data; |
2575 | userdata = data; |
1641 | } |
2576 | } |
1642 | |
2577 | |
1643 | void * |
2578 | void * |
1644 | ev_userdata (EV_P) |
2579 | ev_userdata (EV_P) EV_THROW |
1645 | { |
2580 | { |
1646 | return userdata; |
2581 | return userdata; |
1647 | } |
2582 | } |
1648 | |
2583 | |
|
|
2584 | void |
1649 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
2585 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW |
1650 | { |
2586 | { |
1651 | invoke_cb = invoke_pending_cb; |
2587 | invoke_cb = invoke_pending_cb; |
1652 | } |
2588 | } |
1653 | |
2589 | |
1654 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
2590 | void |
|
|
2591 | ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW |
1655 | { |
2592 | { |
1656 | release_cb = release; |
2593 | release_cb = release; |
1657 | acquire_cb = acquire; |
2594 | acquire_cb = acquire; |
1658 | } |
2595 | } |
1659 | #endif |
2596 | #endif |
1660 | |
2597 | |
1661 | /* initialise a loop structure, must be zero-initialised */ |
2598 | /* initialise a loop structure, must be zero-initialised */ |
1662 | static void noinline |
2599 | static void noinline ecb_cold |
1663 | loop_init (EV_P_ unsigned int flags) |
2600 | loop_init (EV_P_ unsigned int flags) EV_THROW |
1664 | { |
2601 | { |
1665 | if (!backend) |
2602 | if (!backend) |
1666 | { |
2603 | { |
1667 | origflags = flags; |
2604 | origflags = flags; |
1668 | |
2605 | |
… | |
… | |
1695 | if (!(flags & EVFLAG_NOENV) |
2632 | if (!(flags & EVFLAG_NOENV) |
1696 | && !enable_secure () |
2633 | && !enable_secure () |
1697 | && getenv ("LIBEV_FLAGS")) |
2634 | && getenv ("LIBEV_FLAGS")) |
1698 | flags = atoi (getenv ("LIBEV_FLAGS")); |
2635 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1699 | |
2636 | |
1700 | ev_rt_now = ev_time (); |
2637 | ev_rt_now = ev_time (); |
1701 | mn_now = get_clock (); |
2638 | mn_now = get_clock (); |
1702 | now_floor = mn_now; |
2639 | now_floor = mn_now; |
1703 | rtmn_diff = ev_rt_now - mn_now; |
2640 | rtmn_diff = ev_rt_now - mn_now; |
1704 | #if EV_FEATURE_API |
2641 | #if EV_FEATURE_API |
1705 | invoke_cb = ev_invoke_pending; |
2642 | invoke_cb = ev_invoke_pending; |
1706 | #endif |
2643 | #endif |
1707 | |
2644 | |
1708 | io_blocktime = 0.; |
2645 | io_blocktime = 0.; |
1709 | timeout_blocktime = 0.; |
2646 | timeout_blocktime = 0.; |
1710 | backend = 0; |
2647 | backend = 0; |
1711 | backend_fd = -1; |
2648 | backend_fd = -1; |
1712 | sig_pending = 0; |
2649 | sig_pending = 0; |
1713 | #if EV_ASYNC_ENABLE |
2650 | #if EV_ASYNC_ENABLE |
1714 | async_pending = 0; |
2651 | async_pending = 0; |
1715 | #endif |
2652 | #endif |
|
|
2653 | pipe_write_skipped = 0; |
|
|
2654 | pipe_write_wanted = 0; |
|
|
2655 | evpipe [0] = -1; |
|
|
2656 | evpipe [1] = -1; |
1716 | #if EV_USE_INOTIFY |
2657 | #if EV_USE_INOTIFY |
1717 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2658 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1718 | #endif |
2659 | #endif |
1719 | #if EV_USE_SIGNALFD |
2660 | #if EV_USE_SIGNALFD |
1720 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2661 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1721 | #endif |
2662 | #endif |
1722 | |
2663 | |
1723 | if (!(flags & EVBACKEND_MASK)) |
2664 | if (!(flags & EVBACKEND_MASK)) |
1724 | flags |= ev_recommended_backends (); |
2665 | flags |= ev_recommended_backends (); |
1725 | |
2666 | |
… | |
… | |
1750 | #endif |
2691 | #endif |
1751 | } |
2692 | } |
1752 | } |
2693 | } |
1753 | |
2694 | |
1754 | /* free up a loop structure */ |
2695 | /* free up a loop structure */ |
1755 | void |
2696 | void ecb_cold |
1756 | ev_loop_destroy (EV_P) |
2697 | ev_loop_destroy (EV_P) |
1757 | { |
2698 | { |
1758 | int i; |
2699 | int i; |
1759 | |
2700 | |
1760 | #if EV_MULTIPLICITY |
2701 | #if EV_MULTIPLICITY |
… | |
… | |
1771 | EV_INVOKE_PENDING; |
2712 | EV_INVOKE_PENDING; |
1772 | } |
2713 | } |
1773 | #endif |
2714 | #endif |
1774 | |
2715 | |
1775 | #if EV_CHILD_ENABLE |
2716 | #if EV_CHILD_ENABLE |
1776 | if (ev_is_active (&childev)) |
2717 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
1777 | { |
2718 | { |
1778 | ev_ref (EV_A); /* child watcher */ |
2719 | ev_ref (EV_A); /* child watcher */ |
1779 | ev_signal_stop (EV_A_ &childev); |
2720 | ev_signal_stop (EV_A_ &childev); |
1780 | } |
2721 | } |
1781 | #endif |
2722 | #endif |
… | |
… | |
1783 | if (ev_is_active (&pipe_w)) |
2724 | if (ev_is_active (&pipe_w)) |
1784 | { |
2725 | { |
1785 | /*ev_ref (EV_A);*/ |
2726 | /*ev_ref (EV_A);*/ |
1786 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2727 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1787 | |
2728 | |
1788 | #if EV_USE_EVENTFD |
|
|
1789 | if (evfd >= 0) |
|
|
1790 | close (evfd); |
|
|
1791 | #endif |
|
|
1792 | |
|
|
1793 | if (evpipe [0] >= 0) |
|
|
1794 | { |
|
|
1795 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2729 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
1796 | EV_WIN32_CLOSE_FD (evpipe [1]); |
2730 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
1797 | } |
|
|
1798 | } |
2731 | } |
1799 | |
2732 | |
1800 | #if EV_USE_SIGNALFD |
2733 | #if EV_USE_SIGNALFD |
1801 | if (ev_is_active (&sigfd_w)) |
2734 | if (ev_is_active (&sigfd_w)) |
1802 | close (sigfd); |
2735 | close (sigfd); |
… | |
… | |
1888 | #endif |
2821 | #endif |
1889 | #if EV_USE_INOTIFY |
2822 | #if EV_USE_INOTIFY |
1890 | infy_fork (EV_A); |
2823 | infy_fork (EV_A); |
1891 | #endif |
2824 | #endif |
1892 | |
2825 | |
|
|
2826 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1893 | if (ev_is_active (&pipe_w)) |
2827 | if (ev_is_active (&pipe_w)) |
1894 | { |
2828 | { |
1895 | /* this "locks" the handlers against writing to the pipe */ |
2829 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1896 | /* while we modify the fd vars */ |
|
|
1897 | sig_pending = 1; |
|
|
1898 | #if EV_ASYNC_ENABLE |
|
|
1899 | async_pending = 1; |
|
|
1900 | #endif |
|
|
1901 | |
2830 | |
1902 | ev_ref (EV_A); |
2831 | ev_ref (EV_A); |
1903 | ev_io_stop (EV_A_ &pipe_w); |
2832 | ev_io_stop (EV_A_ &pipe_w); |
1904 | |
2833 | |
1905 | #if EV_USE_EVENTFD |
|
|
1906 | if (evfd >= 0) |
|
|
1907 | close (evfd); |
|
|
1908 | #endif |
|
|
1909 | |
|
|
1910 | if (evpipe [0] >= 0) |
2834 | if (evpipe [0] >= 0) |
1911 | { |
|
|
1912 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2835 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1913 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1914 | } |
|
|
1915 | |
2836 | |
1916 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
1917 | evpipe_init (EV_A); |
2837 | evpipe_init (EV_A); |
1918 | /* now iterate over everything, in case we missed something */ |
2838 | /* iterate over everything, in case we missed something before */ |
1919 | pipecb (EV_A_ &pipe_w, EV_READ); |
2839 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
1920 | #endif |
|
|
1921 | } |
2840 | } |
|
|
2841 | #endif |
1922 | |
2842 | |
1923 | postfork = 0; |
2843 | postfork = 0; |
1924 | } |
2844 | } |
1925 | |
2845 | |
1926 | #if EV_MULTIPLICITY |
2846 | #if EV_MULTIPLICITY |
1927 | |
2847 | |
1928 | struct ev_loop * |
2848 | struct ev_loop * ecb_cold |
1929 | ev_loop_new (unsigned int flags) |
2849 | ev_loop_new (unsigned int flags) EV_THROW |
1930 | { |
2850 | { |
1931 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2851 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1932 | |
2852 | |
1933 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2853 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1934 | loop_init (EV_A_ flags); |
2854 | loop_init (EV_A_ flags); |
… | |
… | |
1941 | } |
2861 | } |
1942 | |
2862 | |
1943 | #endif /* multiplicity */ |
2863 | #endif /* multiplicity */ |
1944 | |
2864 | |
1945 | #if EV_VERIFY |
2865 | #if EV_VERIFY |
1946 | static void noinline |
2866 | static void noinline ecb_cold |
1947 | verify_watcher (EV_P_ W w) |
2867 | verify_watcher (EV_P_ W w) |
1948 | { |
2868 | { |
1949 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2869 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1950 | |
2870 | |
1951 | if (w->pending) |
2871 | if (w->pending) |
1952 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2872 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1953 | } |
2873 | } |
1954 | |
2874 | |
1955 | static void noinline |
2875 | static void noinline ecb_cold |
1956 | verify_heap (EV_P_ ANHE *heap, int N) |
2876 | verify_heap (EV_P_ ANHE *heap, int N) |
1957 | { |
2877 | { |
1958 | int i; |
2878 | int i; |
1959 | |
2879 | |
1960 | for (i = HEAP0; i < N + HEAP0; ++i) |
2880 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
1965 | |
2885 | |
1966 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2886 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1967 | } |
2887 | } |
1968 | } |
2888 | } |
1969 | |
2889 | |
1970 | static void noinline |
2890 | static void noinline ecb_cold |
1971 | array_verify (EV_P_ W *ws, int cnt) |
2891 | array_verify (EV_P_ W *ws, int cnt) |
1972 | { |
2892 | { |
1973 | while (cnt--) |
2893 | while (cnt--) |
1974 | { |
2894 | { |
1975 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
2895 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
1977 | } |
2897 | } |
1978 | } |
2898 | } |
1979 | #endif |
2899 | #endif |
1980 | |
2900 | |
1981 | #if EV_FEATURE_API |
2901 | #if EV_FEATURE_API |
1982 | void |
2902 | void ecb_cold |
1983 | ev_verify (EV_P) |
2903 | ev_verify (EV_P) EV_THROW |
1984 | { |
2904 | { |
1985 | #if EV_VERIFY |
2905 | #if EV_VERIFY |
1986 | int i; |
2906 | int i; |
1987 | WL w; |
2907 | WL w, w2; |
1988 | |
2908 | |
1989 | assert (activecnt >= -1); |
2909 | assert (activecnt >= -1); |
1990 | |
2910 | |
1991 | assert (fdchangemax >= fdchangecnt); |
2911 | assert (fdchangemax >= fdchangecnt); |
1992 | for (i = 0; i < fdchangecnt; ++i) |
2912 | for (i = 0; i < fdchangecnt; ++i) |
1993 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2913 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1994 | |
2914 | |
1995 | assert (anfdmax >= 0); |
2915 | assert (anfdmax >= 0); |
1996 | for (i = 0; i < anfdmax; ++i) |
2916 | for (i = 0; i < anfdmax; ++i) |
|
|
2917 | { |
|
|
2918 | int j = 0; |
|
|
2919 | |
1997 | for (w = anfds [i].head; w; w = w->next) |
2920 | for (w = w2 = anfds [i].head; w; w = w->next) |
1998 | { |
2921 | { |
1999 | verify_watcher (EV_A_ (W)w); |
2922 | verify_watcher (EV_A_ (W)w); |
|
|
2923 | |
|
|
2924 | if (j++ & 1) |
|
|
2925 | { |
|
|
2926 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
2927 | w2 = w2->next; |
|
|
2928 | } |
|
|
2929 | |
2000 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2930 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2001 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2931 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2002 | } |
2932 | } |
|
|
2933 | } |
2003 | |
2934 | |
2004 | assert (timermax >= timercnt); |
2935 | assert (timermax >= timercnt); |
2005 | verify_heap (EV_A_ timers, timercnt); |
2936 | verify_heap (EV_A_ timers, timercnt); |
2006 | |
2937 | |
2007 | #if EV_PERIODIC_ENABLE |
2938 | #if EV_PERIODIC_ENABLE |
… | |
… | |
2053 | #endif |
2984 | #endif |
2054 | } |
2985 | } |
2055 | #endif |
2986 | #endif |
2056 | |
2987 | |
2057 | #if EV_MULTIPLICITY |
2988 | #if EV_MULTIPLICITY |
2058 | struct ev_loop * |
2989 | struct ev_loop * ecb_cold |
2059 | #else |
2990 | #else |
2060 | int |
2991 | int |
2061 | #endif |
2992 | #endif |
2062 | ev_default_loop (unsigned int flags) |
2993 | ev_default_loop (unsigned int flags) EV_THROW |
2063 | { |
2994 | { |
2064 | if (!ev_default_loop_ptr) |
2995 | if (!ev_default_loop_ptr) |
2065 | { |
2996 | { |
2066 | #if EV_MULTIPLICITY |
2997 | #if EV_MULTIPLICITY |
2067 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
2998 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
2086 | |
3017 | |
2087 | return ev_default_loop_ptr; |
3018 | return ev_default_loop_ptr; |
2088 | } |
3019 | } |
2089 | |
3020 | |
2090 | void |
3021 | void |
2091 | ev_loop_fork (EV_P) |
3022 | ev_loop_fork (EV_P) EV_THROW |
2092 | { |
3023 | { |
2093 | postfork = 1; /* must be in line with ev_default_fork */ |
3024 | postfork = 1; |
2094 | } |
3025 | } |
2095 | |
3026 | |
2096 | /*****************************************************************************/ |
3027 | /*****************************************************************************/ |
2097 | |
3028 | |
2098 | void |
3029 | void |
… | |
… | |
2100 | { |
3031 | { |
2101 | EV_CB_INVOKE ((W)w, revents); |
3032 | EV_CB_INVOKE ((W)w, revents); |
2102 | } |
3033 | } |
2103 | |
3034 | |
2104 | unsigned int |
3035 | unsigned int |
2105 | ev_pending_count (EV_P) |
3036 | ev_pending_count (EV_P) EV_THROW |
2106 | { |
3037 | { |
2107 | int pri; |
3038 | int pri; |
2108 | unsigned int count = 0; |
3039 | unsigned int count = 0; |
2109 | |
3040 | |
2110 | for (pri = NUMPRI; pri--; ) |
3041 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
2114 | } |
3045 | } |
2115 | |
3046 | |
2116 | void noinline |
3047 | void noinline |
2117 | ev_invoke_pending (EV_P) |
3048 | ev_invoke_pending (EV_P) |
2118 | { |
3049 | { |
2119 | int pri; |
3050 | pendingpri = NUMPRI; |
2120 | |
3051 | |
2121 | for (pri = NUMPRI; pri--; ) |
3052 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
|
|
3053 | { |
|
|
3054 | --pendingpri; |
|
|
3055 | |
2122 | while (pendingcnt [pri]) |
3056 | while (pendingcnt [pendingpri]) |
2123 | { |
3057 | { |
2124 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
3058 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2125 | |
3059 | |
2126 | p->w->pending = 0; |
3060 | p->w->pending = 0; |
2127 | EV_CB_INVOKE (p->w, p->events); |
3061 | EV_CB_INVOKE (p->w, p->events); |
2128 | EV_FREQUENT_CHECK; |
3062 | EV_FREQUENT_CHECK; |
2129 | } |
3063 | } |
|
|
3064 | } |
2130 | } |
3065 | } |
2131 | |
3066 | |
2132 | #if EV_IDLE_ENABLE |
3067 | #if EV_IDLE_ENABLE |
2133 | /* make idle watchers pending. this handles the "call-idle */ |
3068 | /* make idle watchers pending. this handles the "call-idle */ |
2134 | /* only when higher priorities are idle" logic */ |
3069 | /* only when higher priorities are idle" logic */ |
… | |
… | |
2191 | feed_reverse_done (EV_A_ EV_TIMER); |
3126 | feed_reverse_done (EV_A_ EV_TIMER); |
2192 | } |
3127 | } |
2193 | } |
3128 | } |
2194 | |
3129 | |
2195 | #if EV_PERIODIC_ENABLE |
3130 | #if EV_PERIODIC_ENABLE |
|
|
3131 | |
|
|
3132 | static void noinline |
|
|
3133 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
3134 | { |
|
|
3135 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
3136 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
3137 | |
|
|
3138 | /* the above almost always errs on the low side */ |
|
|
3139 | while (at <= ev_rt_now) |
|
|
3140 | { |
|
|
3141 | ev_tstamp nat = at + w->interval; |
|
|
3142 | |
|
|
3143 | /* when resolution fails us, we use ev_rt_now */ |
|
|
3144 | if (expect_false (nat == at)) |
|
|
3145 | { |
|
|
3146 | at = ev_rt_now; |
|
|
3147 | break; |
|
|
3148 | } |
|
|
3149 | |
|
|
3150 | at = nat; |
|
|
3151 | } |
|
|
3152 | |
|
|
3153 | ev_at (w) = at; |
|
|
3154 | } |
|
|
3155 | |
2196 | /* make periodics pending */ |
3156 | /* make periodics pending */ |
2197 | inline_size void |
3157 | inline_size void |
2198 | periodics_reify (EV_P) |
3158 | periodics_reify (EV_P) |
2199 | { |
3159 | { |
2200 | EV_FREQUENT_CHECK; |
3160 | EV_FREQUENT_CHECK; |
2201 | |
3161 | |
2202 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3162 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2203 | { |
3163 | { |
2204 | int feed_count = 0; |
|
|
2205 | |
|
|
2206 | do |
3164 | do |
2207 | { |
3165 | { |
2208 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3166 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2209 | |
3167 | |
2210 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3168 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
2219 | ANHE_at_cache (periodics [HEAP0]); |
3177 | ANHE_at_cache (periodics [HEAP0]); |
2220 | downheap (periodics, periodiccnt, HEAP0); |
3178 | downheap (periodics, periodiccnt, HEAP0); |
2221 | } |
3179 | } |
2222 | else if (w->interval) |
3180 | else if (w->interval) |
2223 | { |
3181 | { |
2224 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3182 | periodic_recalc (EV_A_ w); |
2225 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2226 | /* this might happen because of floating point inexactness */ |
|
|
2227 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2228 | { |
|
|
2229 | ev_at (w) += w->interval; |
|
|
2230 | |
|
|
2231 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2232 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2233 | /* has effectively asked to get triggered more often than possible */ |
|
|
2234 | if (ev_at (w) < ev_rt_now) |
|
|
2235 | ev_at (w) = ev_rt_now; |
|
|
2236 | } |
|
|
2237 | |
|
|
2238 | ANHE_at_cache (periodics [HEAP0]); |
3183 | ANHE_at_cache (periodics [HEAP0]); |
2239 | downheap (periodics, periodiccnt, HEAP0); |
3184 | downheap (periodics, periodiccnt, HEAP0); |
2240 | } |
3185 | } |
2241 | else |
3186 | else |
2242 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
3187 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
… | |
… | |
2250 | } |
3195 | } |
2251 | } |
3196 | } |
2252 | |
3197 | |
2253 | /* simply recalculate all periodics */ |
3198 | /* simply recalculate all periodics */ |
2254 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3199 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2255 | static void noinline |
3200 | static void noinline ecb_cold |
2256 | periodics_reschedule (EV_P) |
3201 | periodics_reschedule (EV_P) |
2257 | { |
3202 | { |
2258 | int i; |
3203 | int i; |
2259 | |
3204 | |
2260 | /* adjust periodics after time jump */ |
3205 | /* adjust periodics after time jump */ |
… | |
… | |
2263 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
3208 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2264 | |
3209 | |
2265 | if (w->reschedule_cb) |
3210 | if (w->reschedule_cb) |
2266 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3211 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2267 | else if (w->interval) |
3212 | else if (w->interval) |
2268 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3213 | periodic_recalc (EV_A_ w); |
2269 | |
3214 | |
2270 | ANHE_at_cache (periodics [i]); |
3215 | ANHE_at_cache (periodics [i]); |
2271 | } |
3216 | } |
2272 | |
3217 | |
2273 | reheap (periodics, periodiccnt); |
3218 | reheap (periodics, periodiccnt); |
2274 | } |
3219 | } |
2275 | #endif |
3220 | #endif |
2276 | |
3221 | |
2277 | /* adjust all timers by a given offset */ |
3222 | /* adjust all timers by a given offset */ |
2278 | static void noinline |
3223 | static void noinline ecb_cold |
2279 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3224 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2280 | { |
3225 | { |
2281 | int i; |
3226 | int i; |
2282 | |
3227 | |
2283 | for (i = 0; i < timercnt; ++i) |
3228 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
2320 | * doesn't hurt either as we only do this on time-jumps or |
3265 | * doesn't hurt either as we only do this on time-jumps or |
2321 | * in the unlikely event of having been preempted here. |
3266 | * in the unlikely event of having been preempted here. |
2322 | */ |
3267 | */ |
2323 | for (i = 4; --i; ) |
3268 | for (i = 4; --i; ) |
2324 | { |
3269 | { |
|
|
3270 | ev_tstamp diff; |
2325 | rtmn_diff = ev_rt_now - mn_now; |
3271 | rtmn_diff = ev_rt_now - mn_now; |
2326 | |
3272 | |
|
|
3273 | diff = odiff - rtmn_diff; |
|
|
3274 | |
2327 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
3275 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
2328 | return; /* all is well */ |
3276 | return; /* all is well */ |
2329 | |
3277 | |
2330 | ev_rt_now = ev_time (); |
3278 | ev_rt_now = ev_time (); |
2331 | mn_now = get_clock (); |
3279 | mn_now = get_clock (); |
2332 | now_floor = mn_now; |
3280 | now_floor = mn_now; |
… | |
… | |
2354 | |
3302 | |
2355 | mn_now = ev_rt_now; |
3303 | mn_now = ev_rt_now; |
2356 | } |
3304 | } |
2357 | } |
3305 | } |
2358 | |
3306 | |
2359 | void |
3307 | int |
2360 | ev_run (EV_P_ int flags) |
3308 | ev_run (EV_P_ int flags) |
2361 | { |
3309 | { |
2362 | #if EV_FEATURE_API |
3310 | #if EV_FEATURE_API |
2363 | ++loop_depth; |
3311 | ++loop_depth; |
2364 | #endif |
3312 | #endif |
… | |
… | |
2422 | ev_tstamp prev_mn_now = mn_now; |
3370 | ev_tstamp prev_mn_now = mn_now; |
2423 | |
3371 | |
2424 | /* update time to cancel out callback processing overhead */ |
3372 | /* update time to cancel out callback processing overhead */ |
2425 | time_update (EV_A_ 1e100); |
3373 | time_update (EV_A_ 1e100); |
2426 | |
3374 | |
|
|
3375 | /* from now on, we want a pipe-wake-up */ |
|
|
3376 | pipe_write_wanted = 1; |
|
|
3377 | |
|
|
3378 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
3379 | |
2427 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
3380 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2428 | { |
3381 | { |
2429 | waittime = MAX_BLOCKTIME; |
3382 | waittime = MAX_BLOCKTIME; |
2430 | |
3383 | |
2431 | if (timercnt) |
3384 | if (timercnt) |
2432 | { |
3385 | { |
2433 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
3386 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
2434 | if (waittime > to) waittime = to; |
3387 | if (waittime > to) waittime = to; |
2435 | } |
3388 | } |
2436 | |
3389 | |
2437 | #if EV_PERIODIC_ENABLE |
3390 | #if EV_PERIODIC_ENABLE |
2438 | if (periodiccnt) |
3391 | if (periodiccnt) |
2439 | { |
3392 | { |
2440 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
3393 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
2441 | if (waittime > to) waittime = to; |
3394 | if (waittime > to) waittime = to; |
2442 | } |
3395 | } |
2443 | #endif |
3396 | #endif |
2444 | |
3397 | |
2445 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3398 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2446 | if (expect_false (waittime < timeout_blocktime)) |
3399 | if (expect_false (waittime < timeout_blocktime)) |
2447 | waittime = timeout_blocktime; |
3400 | waittime = timeout_blocktime; |
|
|
3401 | |
|
|
3402 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
3403 | /* to pass a minimum nonzero value to the backend */ |
|
|
3404 | if (expect_false (waittime < backend_mintime)) |
|
|
3405 | waittime = backend_mintime; |
2448 | |
3406 | |
2449 | /* extra check because io_blocktime is commonly 0 */ |
3407 | /* extra check because io_blocktime is commonly 0 */ |
2450 | if (expect_false (io_blocktime)) |
3408 | if (expect_false (io_blocktime)) |
2451 | { |
3409 | { |
2452 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3410 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
2453 | |
3411 | |
2454 | if (sleeptime > waittime - backend_fudge) |
3412 | if (sleeptime > waittime - backend_mintime) |
2455 | sleeptime = waittime - backend_fudge; |
3413 | sleeptime = waittime - backend_mintime; |
2456 | |
3414 | |
2457 | if (expect_true (sleeptime > 0.)) |
3415 | if (expect_true (sleeptime > 0.)) |
2458 | { |
3416 | { |
2459 | ev_sleep (sleeptime); |
3417 | ev_sleep (sleeptime); |
2460 | waittime -= sleeptime; |
3418 | waittime -= sleeptime; |
… | |
… | |
2467 | #endif |
3425 | #endif |
2468 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
3426 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2469 | backend_poll (EV_A_ waittime); |
3427 | backend_poll (EV_A_ waittime); |
2470 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3428 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2471 | |
3429 | |
|
|
3430 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
3431 | |
|
|
3432 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
3433 | if (pipe_write_skipped) |
|
|
3434 | { |
|
|
3435 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
3436 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3437 | } |
|
|
3438 | |
|
|
3439 | |
2472 | /* update ev_rt_now, do magic */ |
3440 | /* update ev_rt_now, do magic */ |
2473 | time_update (EV_A_ waittime + sleeptime); |
3441 | time_update (EV_A_ waittime + sleeptime); |
2474 | } |
3442 | } |
2475 | |
3443 | |
2476 | /* queue pending timers and reschedule them */ |
3444 | /* queue pending timers and reschedule them */ |
… | |
… | |
2502 | loop_done = EVBREAK_CANCEL; |
3470 | loop_done = EVBREAK_CANCEL; |
2503 | |
3471 | |
2504 | #if EV_FEATURE_API |
3472 | #if EV_FEATURE_API |
2505 | --loop_depth; |
3473 | --loop_depth; |
2506 | #endif |
3474 | #endif |
|
|
3475 | |
|
|
3476 | return activecnt; |
2507 | } |
3477 | } |
2508 | |
3478 | |
2509 | void |
3479 | void |
2510 | ev_break (EV_P_ int how) |
3480 | ev_break (EV_P_ int how) EV_THROW |
2511 | { |
3481 | { |
2512 | loop_done = how; |
3482 | loop_done = how; |
2513 | } |
3483 | } |
2514 | |
3484 | |
2515 | void |
3485 | void |
2516 | ev_ref (EV_P) |
3486 | ev_ref (EV_P) EV_THROW |
2517 | { |
3487 | { |
2518 | ++activecnt; |
3488 | ++activecnt; |
2519 | } |
3489 | } |
2520 | |
3490 | |
2521 | void |
3491 | void |
2522 | ev_unref (EV_P) |
3492 | ev_unref (EV_P) EV_THROW |
2523 | { |
3493 | { |
2524 | --activecnt; |
3494 | --activecnt; |
2525 | } |
3495 | } |
2526 | |
3496 | |
2527 | void |
3497 | void |
2528 | ev_now_update (EV_P) |
3498 | ev_now_update (EV_P) EV_THROW |
2529 | { |
3499 | { |
2530 | time_update (EV_A_ 1e100); |
3500 | time_update (EV_A_ 1e100); |
2531 | } |
3501 | } |
2532 | |
3502 | |
2533 | void |
3503 | void |
2534 | ev_suspend (EV_P) |
3504 | ev_suspend (EV_P) EV_THROW |
2535 | { |
3505 | { |
2536 | ev_now_update (EV_A); |
3506 | ev_now_update (EV_A); |
2537 | } |
3507 | } |
2538 | |
3508 | |
2539 | void |
3509 | void |
2540 | ev_resume (EV_P) |
3510 | ev_resume (EV_P) EV_THROW |
2541 | { |
3511 | { |
2542 | ev_tstamp mn_prev = mn_now; |
3512 | ev_tstamp mn_prev = mn_now; |
2543 | |
3513 | |
2544 | ev_now_update (EV_A); |
3514 | ev_now_update (EV_A); |
2545 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3515 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
2584 | w->pending = 0; |
3554 | w->pending = 0; |
2585 | } |
3555 | } |
2586 | } |
3556 | } |
2587 | |
3557 | |
2588 | int |
3558 | int |
2589 | ev_clear_pending (EV_P_ void *w) |
3559 | ev_clear_pending (EV_P_ void *w) EV_THROW |
2590 | { |
3560 | { |
2591 | W w_ = (W)w; |
3561 | W w_ = (W)w; |
2592 | int pending = w_->pending; |
3562 | int pending = w_->pending; |
2593 | |
3563 | |
2594 | if (expect_true (pending)) |
3564 | if (expect_true (pending)) |
… | |
… | |
2627 | } |
3597 | } |
2628 | |
3598 | |
2629 | /*****************************************************************************/ |
3599 | /*****************************************************************************/ |
2630 | |
3600 | |
2631 | void noinline |
3601 | void noinline |
2632 | ev_io_start (EV_P_ ev_io *w) |
3602 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
2633 | { |
3603 | { |
2634 | int fd = w->fd; |
3604 | int fd = w->fd; |
2635 | |
3605 | |
2636 | if (expect_false (ev_is_active (w))) |
3606 | if (expect_false (ev_is_active (w))) |
2637 | return; |
3607 | return; |
… | |
… | |
2643 | |
3613 | |
2644 | ev_start (EV_A_ (W)w, 1); |
3614 | ev_start (EV_A_ (W)w, 1); |
2645 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3615 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2646 | wlist_add (&anfds[fd].head, (WL)w); |
3616 | wlist_add (&anfds[fd].head, (WL)w); |
2647 | |
3617 | |
|
|
3618 | /* common bug, apparently */ |
|
|
3619 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
|
|
3620 | |
2648 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
3621 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2649 | w->events &= ~EV__IOFDSET; |
3622 | w->events &= ~EV__IOFDSET; |
2650 | |
3623 | |
2651 | EV_FREQUENT_CHECK; |
3624 | EV_FREQUENT_CHECK; |
2652 | } |
3625 | } |
2653 | |
3626 | |
2654 | void noinline |
3627 | void noinline |
2655 | ev_io_stop (EV_P_ ev_io *w) |
3628 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
2656 | { |
3629 | { |
2657 | clear_pending (EV_A_ (W)w); |
3630 | clear_pending (EV_A_ (W)w); |
2658 | if (expect_false (!ev_is_active (w))) |
3631 | if (expect_false (!ev_is_active (w))) |
2659 | return; |
3632 | return; |
2660 | |
3633 | |
… | |
… | |
2669 | |
3642 | |
2670 | EV_FREQUENT_CHECK; |
3643 | EV_FREQUENT_CHECK; |
2671 | } |
3644 | } |
2672 | |
3645 | |
2673 | void noinline |
3646 | void noinline |
2674 | ev_timer_start (EV_P_ ev_timer *w) |
3647 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
2675 | { |
3648 | { |
2676 | if (expect_false (ev_is_active (w))) |
3649 | if (expect_false (ev_is_active (w))) |
2677 | return; |
3650 | return; |
2678 | |
3651 | |
2679 | ev_at (w) += mn_now; |
3652 | ev_at (w) += mn_now; |
… | |
… | |
2693 | |
3666 | |
2694 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3667 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2695 | } |
3668 | } |
2696 | |
3669 | |
2697 | void noinline |
3670 | void noinline |
2698 | ev_timer_stop (EV_P_ ev_timer *w) |
3671 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
2699 | { |
3672 | { |
2700 | clear_pending (EV_A_ (W)w); |
3673 | clear_pending (EV_A_ (W)w); |
2701 | if (expect_false (!ev_is_active (w))) |
3674 | if (expect_false (!ev_is_active (w))) |
2702 | return; |
3675 | return; |
2703 | |
3676 | |
… | |
… | |
2723 | |
3696 | |
2724 | EV_FREQUENT_CHECK; |
3697 | EV_FREQUENT_CHECK; |
2725 | } |
3698 | } |
2726 | |
3699 | |
2727 | void noinline |
3700 | void noinline |
2728 | ev_timer_again (EV_P_ ev_timer *w) |
3701 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
2729 | { |
3702 | { |
2730 | EV_FREQUENT_CHECK; |
3703 | EV_FREQUENT_CHECK; |
|
|
3704 | |
|
|
3705 | clear_pending (EV_A_ (W)w); |
2731 | |
3706 | |
2732 | if (ev_is_active (w)) |
3707 | if (ev_is_active (w)) |
2733 | { |
3708 | { |
2734 | if (w->repeat) |
3709 | if (w->repeat) |
2735 | { |
3710 | { |
… | |
… | |
2748 | |
3723 | |
2749 | EV_FREQUENT_CHECK; |
3724 | EV_FREQUENT_CHECK; |
2750 | } |
3725 | } |
2751 | |
3726 | |
2752 | ev_tstamp |
3727 | ev_tstamp |
2753 | ev_timer_remaining (EV_P_ ev_timer *w) |
3728 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
2754 | { |
3729 | { |
2755 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3730 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
2756 | } |
3731 | } |
2757 | |
3732 | |
2758 | #if EV_PERIODIC_ENABLE |
3733 | #if EV_PERIODIC_ENABLE |
2759 | void noinline |
3734 | void noinline |
2760 | ev_periodic_start (EV_P_ ev_periodic *w) |
3735 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
2761 | { |
3736 | { |
2762 | if (expect_false (ev_is_active (w))) |
3737 | if (expect_false (ev_is_active (w))) |
2763 | return; |
3738 | return; |
2764 | |
3739 | |
2765 | if (w->reschedule_cb) |
3740 | if (w->reschedule_cb) |
2766 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3741 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2767 | else if (w->interval) |
3742 | else if (w->interval) |
2768 | { |
3743 | { |
2769 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
3744 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2770 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
3745 | periodic_recalc (EV_A_ w); |
2771 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2772 | } |
3746 | } |
2773 | else |
3747 | else |
2774 | ev_at (w) = w->offset; |
3748 | ev_at (w) = w->offset; |
2775 | |
3749 | |
2776 | EV_FREQUENT_CHECK; |
3750 | EV_FREQUENT_CHECK; |
… | |
… | |
2786 | |
3760 | |
2787 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3761 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2788 | } |
3762 | } |
2789 | |
3763 | |
2790 | void noinline |
3764 | void noinline |
2791 | ev_periodic_stop (EV_P_ ev_periodic *w) |
3765 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
2792 | { |
3766 | { |
2793 | clear_pending (EV_A_ (W)w); |
3767 | clear_pending (EV_A_ (W)w); |
2794 | if (expect_false (!ev_is_active (w))) |
3768 | if (expect_false (!ev_is_active (w))) |
2795 | return; |
3769 | return; |
2796 | |
3770 | |
… | |
… | |
2814 | |
3788 | |
2815 | EV_FREQUENT_CHECK; |
3789 | EV_FREQUENT_CHECK; |
2816 | } |
3790 | } |
2817 | |
3791 | |
2818 | void noinline |
3792 | void noinline |
2819 | ev_periodic_again (EV_P_ ev_periodic *w) |
3793 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
2820 | { |
3794 | { |
2821 | /* TODO: use adjustheap and recalculation */ |
3795 | /* TODO: use adjustheap and recalculation */ |
2822 | ev_periodic_stop (EV_A_ w); |
3796 | ev_periodic_stop (EV_A_ w); |
2823 | ev_periodic_start (EV_A_ w); |
3797 | ev_periodic_start (EV_A_ w); |
2824 | } |
3798 | } |
… | |
… | |
2829 | #endif |
3803 | #endif |
2830 | |
3804 | |
2831 | #if EV_SIGNAL_ENABLE |
3805 | #if EV_SIGNAL_ENABLE |
2832 | |
3806 | |
2833 | void noinline |
3807 | void noinline |
2834 | ev_signal_start (EV_P_ ev_signal *w) |
3808 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
2835 | { |
3809 | { |
2836 | if (expect_false (ev_is_active (w))) |
3810 | if (expect_false (ev_is_active (w))) |
2837 | return; |
3811 | return; |
2838 | |
3812 | |
2839 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
3813 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
… | |
… | |
2841 | #if EV_MULTIPLICITY |
3815 | #if EV_MULTIPLICITY |
2842 | assert (("libev: a signal must not be attached to two different loops", |
3816 | assert (("libev: a signal must not be attached to two different loops", |
2843 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3817 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2844 | |
3818 | |
2845 | signals [w->signum - 1].loop = EV_A; |
3819 | signals [w->signum - 1].loop = EV_A; |
|
|
3820 | ECB_MEMORY_FENCE_RELEASE; |
2846 | #endif |
3821 | #endif |
2847 | |
3822 | |
2848 | EV_FREQUENT_CHECK; |
3823 | EV_FREQUENT_CHECK; |
2849 | |
3824 | |
2850 | #if EV_USE_SIGNALFD |
3825 | #if EV_USE_SIGNALFD |
… | |
… | |
2910 | |
3885 | |
2911 | EV_FREQUENT_CHECK; |
3886 | EV_FREQUENT_CHECK; |
2912 | } |
3887 | } |
2913 | |
3888 | |
2914 | void noinline |
3889 | void noinline |
2915 | ev_signal_stop (EV_P_ ev_signal *w) |
3890 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
2916 | { |
3891 | { |
2917 | clear_pending (EV_A_ (W)w); |
3892 | clear_pending (EV_A_ (W)w); |
2918 | if (expect_false (!ev_is_active (w))) |
3893 | if (expect_false (!ev_is_active (w))) |
2919 | return; |
3894 | return; |
2920 | |
3895 | |
… | |
… | |
2951 | #endif |
3926 | #endif |
2952 | |
3927 | |
2953 | #if EV_CHILD_ENABLE |
3928 | #if EV_CHILD_ENABLE |
2954 | |
3929 | |
2955 | void |
3930 | void |
2956 | ev_child_start (EV_P_ ev_child *w) |
3931 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
2957 | { |
3932 | { |
2958 | #if EV_MULTIPLICITY |
3933 | #if EV_MULTIPLICITY |
2959 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3934 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2960 | #endif |
3935 | #endif |
2961 | if (expect_false (ev_is_active (w))) |
3936 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2968 | |
3943 | |
2969 | EV_FREQUENT_CHECK; |
3944 | EV_FREQUENT_CHECK; |
2970 | } |
3945 | } |
2971 | |
3946 | |
2972 | void |
3947 | void |
2973 | ev_child_stop (EV_P_ ev_child *w) |
3948 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
2974 | { |
3949 | { |
2975 | clear_pending (EV_A_ (W)w); |
3950 | clear_pending (EV_A_ (W)w); |
2976 | if (expect_false (!ev_is_active (w))) |
3951 | if (expect_false (!ev_is_active (w))) |
2977 | return; |
3952 | return; |
2978 | |
3953 | |
… | |
… | |
3005 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3980 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3006 | |
3981 | |
3007 | static void noinline |
3982 | static void noinline |
3008 | infy_add (EV_P_ ev_stat *w) |
3983 | infy_add (EV_P_ ev_stat *w) |
3009 | { |
3984 | { |
3010 | 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); |
3985 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
3986 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
3987 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
3988 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
3011 | |
3989 | |
3012 | if (w->wd >= 0) |
3990 | if (w->wd >= 0) |
3013 | { |
3991 | { |
3014 | struct statfs sfs; |
3992 | struct statfs sfs; |
3015 | |
3993 | |
… | |
… | |
3019 | |
3997 | |
3020 | if (!fs_2625) |
3998 | if (!fs_2625) |
3021 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3999 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3022 | else if (!statfs (w->path, &sfs) |
4000 | else if (!statfs (w->path, &sfs) |
3023 | && (sfs.f_type == 0x1373 /* devfs */ |
4001 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
4002 | || sfs.f_type == 0x4006 /* fat */ |
|
|
4003 | || sfs.f_type == 0x4d44 /* msdos */ |
3024 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
4004 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
4005 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
4006 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
4007 | || sfs.f_type == 0x5346544e /* ntfs */ |
3025 | || sfs.f_type == 0x3153464a /* jfs */ |
4008 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
4009 | || sfs.f_type == 0x9123683e /* btrfs */ |
3026 | || sfs.f_type == 0x52654973 /* reiser3 */ |
4010 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3027 | || sfs.f_type == 0x01021994 /* tempfs */ |
4011 | || sfs.f_type == 0x01021994 /* tmpfs */ |
3028 | || sfs.f_type == 0x58465342 /* xfs */)) |
4012 | || sfs.f_type == 0x58465342 /* xfs */)) |
3029 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
4013 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3030 | else |
4014 | else |
3031 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
4015 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
3032 | } |
4016 | } |
… | |
… | |
3053 | if (!pend || pend == path) |
4037 | if (!pend || pend == path) |
3054 | break; |
4038 | break; |
3055 | |
4039 | |
3056 | *pend = 0; |
4040 | *pend = 0; |
3057 | w->wd = inotify_add_watch (fs_fd, path, mask); |
4041 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3058 | } |
4042 | } |
3059 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
4043 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3060 | } |
4044 | } |
3061 | } |
4045 | } |
3062 | |
4046 | |
3063 | if (w->wd >= 0) |
4047 | if (w->wd >= 0) |
… | |
… | |
3130 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4114 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3131 | ofs += sizeof (struct inotify_event) + ev->len; |
4115 | ofs += sizeof (struct inotify_event) + ev->len; |
3132 | } |
4116 | } |
3133 | } |
4117 | } |
3134 | |
4118 | |
3135 | inline_size void |
4119 | inline_size void ecb_cold |
3136 | ev_check_2625 (EV_P) |
4120 | ev_check_2625 (EV_P) |
3137 | { |
4121 | { |
3138 | /* kernels < 2.6.25 are borked |
4122 | /* kernels < 2.6.25 are borked |
3139 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4123 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3140 | */ |
4124 | */ |
… | |
… | |
3145 | } |
4129 | } |
3146 | |
4130 | |
3147 | inline_size int |
4131 | inline_size int |
3148 | infy_newfd (void) |
4132 | infy_newfd (void) |
3149 | { |
4133 | { |
3150 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
4134 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
3151 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
4135 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3152 | if (fd >= 0) |
4136 | if (fd >= 0) |
3153 | return fd; |
4137 | return fd; |
3154 | #endif |
4138 | #endif |
3155 | return inotify_init (); |
4139 | return inotify_init (); |
… | |
… | |
3230 | #else |
4214 | #else |
3231 | # define EV_LSTAT(p,b) lstat (p, b) |
4215 | # define EV_LSTAT(p,b) lstat (p, b) |
3232 | #endif |
4216 | #endif |
3233 | |
4217 | |
3234 | void |
4218 | void |
3235 | ev_stat_stat (EV_P_ ev_stat *w) |
4219 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
3236 | { |
4220 | { |
3237 | if (lstat (w->path, &w->attr) < 0) |
4221 | if (lstat (w->path, &w->attr) < 0) |
3238 | w->attr.st_nlink = 0; |
4222 | w->attr.st_nlink = 0; |
3239 | else if (!w->attr.st_nlink) |
4223 | else if (!w->attr.st_nlink) |
3240 | w->attr.st_nlink = 1; |
4224 | w->attr.st_nlink = 1; |
… | |
… | |
3279 | ev_feed_event (EV_A_ w, EV_STAT); |
4263 | ev_feed_event (EV_A_ w, EV_STAT); |
3280 | } |
4264 | } |
3281 | } |
4265 | } |
3282 | |
4266 | |
3283 | void |
4267 | void |
3284 | ev_stat_start (EV_P_ ev_stat *w) |
4268 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
3285 | { |
4269 | { |
3286 | if (expect_false (ev_is_active (w))) |
4270 | if (expect_false (ev_is_active (w))) |
3287 | return; |
4271 | return; |
3288 | |
4272 | |
3289 | ev_stat_stat (EV_A_ w); |
4273 | ev_stat_stat (EV_A_ w); |
… | |
… | |
3310 | |
4294 | |
3311 | EV_FREQUENT_CHECK; |
4295 | EV_FREQUENT_CHECK; |
3312 | } |
4296 | } |
3313 | |
4297 | |
3314 | void |
4298 | void |
3315 | ev_stat_stop (EV_P_ ev_stat *w) |
4299 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
3316 | { |
4300 | { |
3317 | clear_pending (EV_A_ (W)w); |
4301 | clear_pending (EV_A_ (W)w); |
3318 | if (expect_false (!ev_is_active (w))) |
4302 | if (expect_false (!ev_is_active (w))) |
3319 | return; |
4303 | return; |
3320 | |
4304 | |
… | |
… | |
3336 | } |
4320 | } |
3337 | #endif |
4321 | #endif |
3338 | |
4322 | |
3339 | #if EV_IDLE_ENABLE |
4323 | #if EV_IDLE_ENABLE |
3340 | void |
4324 | void |
3341 | ev_idle_start (EV_P_ ev_idle *w) |
4325 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
3342 | { |
4326 | { |
3343 | if (expect_false (ev_is_active (w))) |
4327 | if (expect_false (ev_is_active (w))) |
3344 | return; |
4328 | return; |
3345 | |
4329 | |
3346 | pri_adjust (EV_A_ (W)w); |
4330 | pri_adjust (EV_A_ (W)w); |
… | |
… | |
3359 | |
4343 | |
3360 | EV_FREQUENT_CHECK; |
4344 | EV_FREQUENT_CHECK; |
3361 | } |
4345 | } |
3362 | |
4346 | |
3363 | void |
4347 | void |
3364 | ev_idle_stop (EV_P_ ev_idle *w) |
4348 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
3365 | { |
4349 | { |
3366 | clear_pending (EV_A_ (W)w); |
4350 | clear_pending (EV_A_ (W)w); |
3367 | if (expect_false (!ev_is_active (w))) |
4351 | if (expect_false (!ev_is_active (w))) |
3368 | return; |
4352 | return; |
3369 | |
4353 | |
… | |
… | |
3383 | } |
4367 | } |
3384 | #endif |
4368 | #endif |
3385 | |
4369 | |
3386 | #if EV_PREPARE_ENABLE |
4370 | #if EV_PREPARE_ENABLE |
3387 | void |
4371 | void |
3388 | ev_prepare_start (EV_P_ ev_prepare *w) |
4372 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
3389 | { |
4373 | { |
3390 | if (expect_false (ev_is_active (w))) |
4374 | if (expect_false (ev_is_active (w))) |
3391 | return; |
4375 | return; |
3392 | |
4376 | |
3393 | EV_FREQUENT_CHECK; |
4377 | EV_FREQUENT_CHECK; |
… | |
… | |
3398 | |
4382 | |
3399 | EV_FREQUENT_CHECK; |
4383 | EV_FREQUENT_CHECK; |
3400 | } |
4384 | } |
3401 | |
4385 | |
3402 | void |
4386 | void |
3403 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4387 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
3404 | { |
4388 | { |
3405 | clear_pending (EV_A_ (W)w); |
4389 | clear_pending (EV_A_ (W)w); |
3406 | if (expect_false (!ev_is_active (w))) |
4390 | if (expect_false (!ev_is_active (w))) |
3407 | return; |
4391 | return; |
3408 | |
4392 | |
… | |
… | |
3421 | } |
4405 | } |
3422 | #endif |
4406 | #endif |
3423 | |
4407 | |
3424 | #if EV_CHECK_ENABLE |
4408 | #if EV_CHECK_ENABLE |
3425 | void |
4409 | void |
3426 | ev_check_start (EV_P_ ev_check *w) |
4410 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
3427 | { |
4411 | { |
3428 | if (expect_false (ev_is_active (w))) |
4412 | if (expect_false (ev_is_active (w))) |
3429 | return; |
4413 | return; |
3430 | |
4414 | |
3431 | EV_FREQUENT_CHECK; |
4415 | EV_FREQUENT_CHECK; |
… | |
… | |
3436 | |
4420 | |
3437 | EV_FREQUENT_CHECK; |
4421 | EV_FREQUENT_CHECK; |
3438 | } |
4422 | } |
3439 | |
4423 | |
3440 | void |
4424 | void |
3441 | ev_check_stop (EV_P_ ev_check *w) |
4425 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
3442 | { |
4426 | { |
3443 | clear_pending (EV_A_ (W)w); |
4427 | clear_pending (EV_A_ (W)w); |
3444 | if (expect_false (!ev_is_active (w))) |
4428 | if (expect_false (!ev_is_active (w))) |
3445 | return; |
4429 | return; |
3446 | |
4430 | |
… | |
… | |
3459 | } |
4443 | } |
3460 | #endif |
4444 | #endif |
3461 | |
4445 | |
3462 | #if EV_EMBED_ENABLE |
4446 | #if EV_EMBED_ENABLE |
3463 | void noinline |
4447 | void noinline |
3464 | ev_embed_sweep (EV_P_ ev_embed *w) |
4448 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
3465 | { |
4449 | { |
3466 | ev_run (w->other, EVRUN_NOWAIT); |
4450 | ev_run (w->other, EVRUN_NOWAIT); |
3467 | } |
4451 | } |
3468 | |
4452 | |
3469 | static void |
4453 | static void |
… | |
… | |
3517 | ev_idle_stop (EV_A_ idle); |
4501 | ev_idle_stop (EV_A_ idle); |
3518 | } |
4502 | } |
3519 | #endif |
4503 | #endif |
3520 | |
4504 | |
3521 | void |
4505 | void |
3522 | ev_embed_start (EV_P_ ev_embed *w) |
4506 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
3523 | { |
4507 | { |
3524 | if (expect_false (ev_is_active (w))) |
4508 | if (expect_false (ev_is_active (w))) |
3525 | return; |
4509 | return; |
3526 | |
4510 | |
3527 | { |
4511 | { |
… | |
… | |
3548 | |
4532 | |
3549 | EV_FREQUENT_CHECK; |
4533 | EV_FREQUENT_CHECK; |
3550 | } |
4534 | } |
3551 | |
4535 | |
3552 | void |
4536 | void |
3553 | ev_embed_stop (EV_P_ ev_embed *w) |
4537 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
3554 | { |
4538 | { |
3555 | clear_pending (EV_A_ (W)w); |
4539 | clear_pending (EV_A_ (W)w); |
3556 | if (expect_false (!ev_is_active (w))) |
4540 | if (expect_false (!ev_is_active (w))) |
3557 | return; |
4541 | return; |
3558 | |
4542 | |
… | |
… | |
3568 | } |
4552 | } |
3569 | #endif |
4553 | #endif |
3570 | |
4554 | |
3571 | #if EV_FORK_ENABLE |
4555 | #if EV_FORK_ENABLE |
3572 | void |
4556 | void |
3573 | ev_fork_start (EV_P_ ev_fork *w) |
4557 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
3574 | { |
4558 | { |
3575 | if (expect_false (ev_is_active (w))) |
4559 | if (expect_false (ev_is_active (w))) |
3576 | return; |
4560 | return; |
3577 | |
4561 | |
3578 | EV_FREQUENT_CHECK; |
4562 | EV_FREQUENT_CHECK; |
… | |
… | |
3583 | |
4567 | |
3584 | EV_FREQUENT_CHECK; |
4568 | EV_FREQUENT_CHECK; |
3585 | } |
4569 | } |
3586 | |
4570 | |
3587 | void |
4571 | void |
3588 | ev_fork_stop (EV_P_ ev_fork *w) |
4572 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
3589 | { |
4573 | { |
3590 | clear_pending (EV_A_ (W)w); |
4574 | clear_pending (EV_A_ (W)w); |
3591 | if (expect_false (!ev_is_active (w))) |
4575 | if (expect_false (!ev_is_active (w))) |
3592 | return; |
4576 | return; |
3593 | |
4577 | |
… | |
… | |
3606 | } |
4590 | } |
3607 | #endif |
4591 | #endif |
3608 | |
4592 | |
3609 | #if EV_CLEANUP_ENABLE |
4593 | #if EV_CLEANUP_ENABLE |
3610 | void |
4594 | void |
3611 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
4595 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
3612 | { |
4596 | { |
3613 | if (expect_false (ev_is_active (w))) |
4597 | if (expect_false (ev_is_active (w))) |
3614 | return; |
4598 | return; |
3615 | |
4599 | |
3616 | EV_FREQUENT_CHECK; |
4600 | EV_FREQUENT_CHECK; |
… | |
… | |
3623 | ev_unref (EV_A); |
4607 | ev_unref (EV_A); |
3624 | EV_FREQUENT_CHECK; |
4608 | EV_FREQUENT_CHECK; |
3625 | } |
4609 | } |
3626 | |
4610 | |
3627 | void |
4611 | void |
3628 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
4612 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
3629 | { |
4613 | { |
3630 | clear_pending (EV_A_ (W)w); |
4614 | clear_pending (EV_A_ (W)w); |
3631 | if (expect_false (!ev_is_active (w))) |
4615 | if (expect_false (!ev_is_active (w))) |
3632 | return; |
4616 | return; |
3633 | |
4617 | |
… | |
… | |
3647 | } |
4631 | } |
3648 | #endif |
4632 | #endif |
3649 | |
4633 | |
3650 | #if EV_ASYNC_ENABLE |
4634 | #if EV_ASYNC_ENABLE |
3651 | void |
4635 | void |
3652 | ev_async_start (EV_P_ ev_async *w) |
4636 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
3653 | { |
4637 | { |
3654 | if (expect_false (ev_is_active (w))) |
4638 | if (expect_false (ev_is_active (w))) |
3655 | return; |
4639 | return; |
3656 | |
4640 | |
3657 | w->sent = 0; |
4641 | w->sent = 0; |
… | |
… | |
3666 | |
4650 | |
3667 | EV_FREQUENT_CHECK; |
4651 | EV_FREQUENT_CHECK; |
3668 | } |
4652 | } |
3669 | |
4653 | |
3670 | void |
4654 | void |
3671 | ev_async_stop (EV_P_ ev_async *w) |
4655 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
3672 | { |
4656 | { |
3673 | clear_pending (EV_A_ (W)w); |
4657 | clear_pending (EV_A_ (W)w); |
3674 | if (expect_false (!ev_is_active (w))) |
4658 | if (expect_false (!ev_is_active (w))) |
3675 | return; |
4659 | return; |
3676 | |
4660 | |
… | |
… | |
3687 | |
4671 | |
3688 | EV_FREQUENT_CHECK; |
4672 | EV_FREQUENT_CHECK; |
3689 | } |
4673 | } |
3690 | |
4674 | |
3691 | void |
4675 | void |
3692 | ev_async_send (EV_P_ ev_async *w) |
4676 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
3693 | { |
4677 | { |
3694 | w->sent = 1; |
4678 | w->sent = 1; |
3695 | evpipe_write (EV_A_ &async_pending); |
4679 | evpipe_write (EV_A_ &async_pending); |
3696 | } |
4680 | } |
3697 | #endif |
4681 | #endif |
… | |
… | |
3734 | |
4718 | |
3735 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4719 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
3736 | } |
4720 | } |
3737 | |
4721 | |
3738 | void |
4722 | void |
3739 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
4723 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
3740 | { |
4724 | { |
3741 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4725 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3742 | |
4726 | |
3743 | if (expect_false (!once)) |
4727 | if (expect_false (!once)) |
3744 | { |
4728 | { |
… | |
… | |
3765 | } |
4749 | } |
3766 | |
4750 | |
3767 | /*****************************************************************************/ |
4751 | /*****************************************************************************/ |
3768 | |
4752 | |
3769 | #if EV_WALK_ENABLE |
4753 | #if EV_WALK_ENABLE |
3770 | void |
4754 | void ecb_cold |
3771 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
4755 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
3772 | { |
4756 | { |
3773 | int i, j; |
4757 | int i, j; |
3774 | ev_watcher_list *wl, *wn; |
4758 | ev_watcher_list *wl, *wn; |
3775 | |
4759 | |
3776 | if (types & (EV_IO | EV_EMBED)) |
4760 | if (types & (EV_IO | EV_EMBED)) |
… | |
… | |
3819 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
4803 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
3820 | #endif |
4804 | #endif |
3821 | |
4805 | |
3822 | #if EV_IDLE_ENABLE |
4806 | #if EV_IDLE_ENABLE |
3823 | if (types & EV_IDLE) |
4807 | if (types & EV_IDLE) |
3824 | for (j = NUMPRI; i--; ) |
4808 | for (j = NUMPRI; j--; ) |
3825 | for (i = idlecnt [j]; i--; ) |
4809 | for (i = idlecnt [j]; i--; ) |
3826 | cb (EV_A_ EV_IDLE, idles [j][i]); |
4810 | cb (EV_A_ EV_IDLE, idles [j][i]); |
3827 | #endif |
4811 | #endif |
3828 | |
4812 | |
3829 | #if EV_FORK_ENABLE |
4813 | #if EV_FORK_ENABLE |
… | |
… | |
3882 | |
4866 | |
3883 | #if EV_MULTIPLICITY |
4867 | #if EV_MULTIPLICITY |
3884 | #include "ev_wrap.h" |
4868 | #include "ev_wrap.h" |
3885 | #endif |
4869 | #endif |
3886 | |
4870 | |
3887 | EV_CPP(}) |
|
|
3888 | |
|
|