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 | * |
… | |
… | |
59 | # endif |
59 | # endif |
60 | # ifndef EV_USE_MONOTONIC |
60 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 1 |
61 | # define EV_USE_MONOTONIC 1 |
62 | # endif |
62 | # endif |
63 | # endif |
63 | # endif |
64 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
64 | # elif !defined EV_USE_CLOCK_SYSCALL |
65 | # define EV_USE_CLOCK_SYSCALL 0 |
65 | # define EV_USE_CLOCK_SYSCALL 0 |
66 | # endif |
66 | # endif |
67 | |
67 | |
68 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
69 | # ifndef EV_USE_MONOTONIC |
69 | # ifndef EV_USE_MONOTONIC |
… | |
… | |
183 | # include EV_H |
183 | # include EV_H |
184 | #else |
184 | #else |
185 | # include "ev.h" |
185 | # include "ev.h" |
186 | #endif |
186 | #endif |
187 | |
187 | |
|
|
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 |
|
|
198 | |
188 | #ifndef _WIN32 |
199 | #ifndef _WIN32 |
189 | # include <sys/time.h> |
200 | # include <sys/time.h> |
190 | # include <sys/wait.h> |
201 | # include <sys/wait.h> |
191 | # include <unistd.h> |
202 | # include <unistd.h> |
192 | #else |
203 | #else |
193 | # include <io.h> |
204 | # include <io.h> |
194 | # define WIN32_LEAN_AND_MEAN |
205 | # define WIN32_LEAN_AND_MEAN |
|
|
206 | # include <winsock2.h> |
195 | # include <windows.h> |
207 | # include <windows.h> |
196 | # ifndef EV_SELECT_IS_WINSOCKET |
208 | # ifndef EV_SELECT_IS_WINSOCKET |
197 | # define EV_SELECT_IS_WINSOCKET 1 |
209 | # define EV_SELECT_IS_WINSOCKET 1 |
198 | # endif |
210 | # endif |
199 | # undef EV_AVOID_STDIO |
211 | # undef EV_AVOID_STDIO |
… | |
… | |
208 | #define _DARWIN_UNLIMITED_SELECT 1 |
220 | #define _DARWIN_UNLIMITED_SELECT 1 |
209 | |
221 | |
210 | /* 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 */ |
211 | |
223 | |
212 | /* try to deduce the maximum number of signals on this platform */ |
224 | /* try to deduce the maximum number of signals on this platform */ |
213 | #if defined (EV_NSIG) |
225 | #if defined EV_NSIG |
214 | /* use what's provided */ |
226 | /* use what's provided */ |
215 | #elif defined (NSIG) |
227 | #elif defined NSIG |
216 | # define EV_NSIG (NSIG) |
228 | # define EV_NSIG (NSIG) |
217 | #elif defined(_NSIG) |
229 | #elif defined _NSIG |
218 | # define EV_NSIG (_NSIG) |
230 | # define EV_NSIG (_NSIG) |
219 | #elif defined (SIGMAX) |
231 | #elif defined SIGMAX |
220 | # define EV_NSIG (SIGMAX+1) |
232 | # define EV_NSIG (SIGMAX+1) |
221 | #elif defined (SIG_MAX) |
233 | #elif defined SIG_MAX |
222 | # define EV_NSIG (SIG_MAX+1) |
234 | # define EV_NSIG (SIG_MAX+1) |
223 | #elif defined (_SIG_MAX) |
235 | #elif defined _SIG_MAX |
224 | # define EV_NSIG (_SIG_MAX+1) |
236 | # define EV_NSIG (_SIG_MAX+1) |
225 | #elif defined (MAXSIG) |
237 | #elif defined MAXSIG |
226 | # define EV_NSIG (MAXSIG+1) |
238 | # define EV_NSIG (MAXSIG+1) |
227 | #elif defined (MAX_SIG) |
239 | #elif defined MAX_SIG |
228 | # define EV_NSIG (MAX_SIG+1) |
240 | # define EV_NSIG (MAX_SIG+1) |
229 | #elif defined (SIGARRAYSIZE) |
241 | #elif defined SIGARRAYSIZE |
230 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
231 | #elif defined (_sys_nsig) |
243 | #elif defined _sys_nsig |
232 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
233 | #else |
245 | #else |
234 | # error "unable to find value for NSIG, please report" |
246 | # define EV_NSIG (8 * sizeof (sigset_t) + 1) |
235 | /* to make it compile regardless, just remove the above line, */ |
|
|
236 | /* but consider reporting it, too! :) */ |
|
|
237 | # define EV_NSIG 65 |
|
|
238 | #endif |
247 | #endif |
239 | |
248 | |
240 | #ifndef EV_USE_FLOOR |
249 | #ifndef EV_USE_FLOOR |
241 | # define EV_USE_FLOOR 0 |
250 | # define EV_USE_FLOOR 0 |
242 | #endif |
251 | #endif |
243 | |
252 | |
244 | #ifndef EV_USE_CLOCK_SYSCALL |
253 | #ifndef EV_USE_CLOCK_SYSCALL |
245 | # if __linux && __GLIBC__ >= 2 |
254 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
246 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
255 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
247 | # else |
256 | # else |
248 | # define EV_USE_CLOCK_SYSCALL 0 |
257 | # define EV_USE_CLOCK_SYSCALL 0 |
249 | # endif |
258 | # endif |
250 | #endif |
259 | #endif |
251 | |
260 | |
252 | #ifndef EV_USE_MONOTONIC |
261 | #ifndef EV_USE_MONOTONIC |
253 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
262 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
254 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
263 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
255 | # else |
264 | # else |
256 | # define EV_USE_MONOTONIC 0 |
265 | # define EV_USE_MONOTONIC 0 |
257 | # endif |
266 | # endif |
258 | #endif |
267 | #endif |
… | |
… | |
345 | |
354 | |
346 | #ifndef EV_HEAP_CACHE_AT |
355 | #ifndef EV_HEAP_CACHE_AT |
347 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
356 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
348 | #endif |
357 | #endif |
349 | |
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 */ |
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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 | |
350 | /* 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, */ |
351 | /* which makes programs even slower. might work on other unices, too. */ |
376 | /* which makes programs even slower. might work on other unices, too. */ |
352 | #if EV_USE_CLOCK_SYSCALL |
377 | #if EV_USE_CLOCK_SYSCALL |
353 | # include <syscall.h> |
378 | # include <sys/syscall.h> |
354 | # ifdef SYS_clock_gettime |
379 | # ifdef SYS_clock_gettime |
355 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
380 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
356 | # undef EV_USE_MONOTONIC |
381 | # undef EV_USE_MONOTONIC |
357 | # define EV_USE_MONOTONIC 1 |
382 | # define EV_USE_MONOTONIC 1 |
358 | # else |
383 | # else |
… | |
… | |
361 | # endif |
386 | # endif |
362 | #endif |
387 | #endif |
363 | |
388 | |
364 | /* 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 */ |
365 | |
390 | |
366 | #ifdef _AIX |
|
|
367 | /* AIX has a completely broken poll.h header */ |
|
|
368 | # undef EV_USE_POLL |
|
|
369 | # define EV_USE_POLL 0 |
|
|
370 | #endif |
|
|
371 | |
|
|
372 | #ifndef CLOCK_MONOTONIC |
391 | #ifndef CLOCK_MONOTONIC |
373 | # undef EV_USE_MONOTONIC |
392 | # undef EV_USE_MONOTONIC |
374 | # define EV_USE_MONOTONIC 0 |
393 | # define EV_USE_MONOTONIC 0 |
375 | #endif |
394 | #endif |
376 | |
395 | |
… | |
… | |
384 | # define EV_USE_INOTIFY 0 |
403 | # define EV_USE_INOTIFY 0 |
385 | #endif |
404 | #endif |
386 | |
405 | |
387 | #if !EV_USE_NANOSLEEP |
406 | #if !EV_USE_NANOSLEEP |
388 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
407 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
389 | # if !defined(_WIN32) && !defined(__hpux) |
408 | # if !defined _WIN32 && !defined __hpux |
390 | # include <sys/select.h> |
409 | # include <sys/select.h> |
391 | # endif |
410 | # endif |
392 | #endif |
411 | #endif |
393 | |
412 | |
394 | #if EV_USE_INOTIFY |
413 | #if EV_USE_INOTIFY |
… | |
… | |
397 | /* 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 */ |
398 | # ifndef IN_DONT_FOLLOW |
417 | # ifndef IN_DONT_FOLLOW |
399 | # undef EV_USE_INOTIFY |
418 | # undef EV_USE_INOTIFY |
400 | # define EV_USE_INOTIFY 0 |
419 | # define EV_USE_INOTIFY 0 |
401 | # endif |
420 | # endif |
402 | #endif |
|
|
403 | |
|
|
404 | #if EV_SELECT_IS_WINSOCKET |
|
|
405 | # include <winsock.h> |
|
|
406 | #endif |
421 | #endif |
407 | |
422 | |
408 | #if EV_USE_EVENTFD |
423 | #if EV_USE_EVENTFD |
409 | /* 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 */ |
410 | # include <stdint.h> |
425 | # include <stdint.h> |
… | |
… | |
467 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
482 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
468 | /* ECB.H BEGIN */ |
483 | /* ECB.H BEGIN */ |
469 | /* |
484 | /* |
470 | * libecb - http://software.schmorp.de/pkg/libecb |
485 | * libecb - http://software.schmorp.de/pkg/libecb |
471 | * |
486 | * |
472 | * Copyright (©) 2009-2011 Marc Alexander Lehmann <libecb@schmorp.de> |
487 | * Copyright (©) 2009-2014 Marc Alexander Lehmann <libecb@schmorp.de> |
473 | * Copyright (©) 2011 Emanuele Giaquinta |
488 | * Copyright (©) 2011 Emanuele Giaquinta |
474 | * All rights reserved. |
489 | * All rights reserved. |
475 | * |
490 | * |
476 | * Redistribution and use in source and binary forms, with or without modifica- |
491 | * Redistribution and use in source and binary forms, with or without modifica- |
477 | * tion, are permitted provided that the following conditions are met: |
492 | * tion, are permitted provided that the following conditions are met: |
… | |
… | |
491 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
506 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
492 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
507 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
493 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
508 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
494 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
509 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
495 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
510 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
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|
511 | * |
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|
512 | * Alternatively, the contents of this file may be used under the terms of |
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|
513 | * the GNU General Public License ("GPL") version 2 or any later version, |
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|
514 | * in which case the provisions of the GPL are applicable instead of |
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|
515 | * the above. If you wish to allow the use of your version of this file |
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|
516 | * only under the terms of the GPL and not to allow others to use your |
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|
517 | * version of this file under the BSD license, indicate your decision |
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|
518 | * by deleting the provisions above and replace them with the notice |
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519 | * and other provisions required by the GPL. If you do not delete the |
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|
520 | * provisions above, a recipient may use your version of this file under |
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521 | * either the BSD or the GPL. |
496 | */ |
522 | */ |
497 | |
523 | |
498 | #ifndef ECB_H |
524 | #ifndef ECB_H |
499 | #define ECB_H |
525 | #define ECB_H |
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526 | |
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527 | /* 16 bits major, 16 bits minor */ |
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528 | #define ECB_VERSION 0x00010003 |
500 | |
529 | |
501 | #ifdef _WIN32 |
530 | #ifdef _WIN32 |
502 | typedef signed char int8_t; |
531 | typedef signed char int8_t; |
503 | typedef unsigned char uint8_t; |
532 | typedef unsigned char uint8_t; |
504 | typedef signed short int16_t; |
533 | typedef signed short int16_t; |
… | |
… | |
510 | typedef unsigned long long uint64_t; |
539 | typedef unsigned long long uint64_t; |
511 | #else /* _MSC_VER || __BORLANDC__ */ |
540 | #else /* _MSC_VER || __BORLANDC__ */ |
512 | typedef signed __int64 int64_t; |
541 | typedef signed __int64 int64_t; |
513 | typedef unsigned __int64 uint64_t; |
542 | typedef unsigned __int64 uint64_t; |
514 | #endif |
543 | #endif |
|
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544 | #ifdef _WIN64 |
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545 | #define ECB_PTRSIZE 8 |
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546 | typedef uint64_t uintptr_t; |
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547 | typedef int64_t intptr_t; |
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548 | #else |
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|
549 | #define ECB_PTRSIZE 4 |
|
|
550 | typedef uint32_t uintptr_t; |
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551 | typedef int32_t intptr_t; |
|
|
552 | #endif |
515 | #else |
553 | #else |
516 | #include <inttypes.h> |
554 | #include <inttypes.h> |
|
|
555 | #if UINTMAX_MAX > 0xffffffffU |
|
|
556 | #define ECB_PTRSIZE 8 |
|
|
557 | #else |
|
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558 | #define ECB_PTRSIZE 4 |
|
|
559 | #endif |
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560 | #endif |
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561 | |
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562 | /* work around x32 idiocy by defining proper macros */ |
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|
563 | #if __amd64 || __x86_64 || _M_AMD64 || _M_X64 |
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564 | #if _ILP32 |
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565 | #define ECB_AMD64_X32 1 |
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|
566 | #else |
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567 | #define ECB_AMD64 1 |
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|
568 | #endif |
517 | #endif |
569 | #endif |
518 | |
570 | |
519 | /* many compilers define _GNUC_ to some versions but then only implement |
571 | /* many compilers define _GNUC_ to some versions but then only implement |
520 | * what their idiot authors think are the "more important" extensions, |
572 | * what their idiot authors think are the "more important" extensions, |
521 | * causing enormous grief in return for some better fake benchmark numbers. |
573 | * causing enormous grief in return for some better fake benchmark numbers. |
522 | * or so. |
574 | * or so. |
523 | * we try to detect these and simply assume they are not gcc - if they have |
575 | * we try to detect these and simply assume they are not gcc - if they have |
524 | * an issue with that they should have done it right in the first place. |
576 | * an issue with that they should have done it right in the first place. |
525 | */ |
577 | */ |
526 | #ifndef ECB_GCC_VERSION |
578 | #ifndef ECB_GCC_VERSION |
527 | #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) |
579 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
528 | #define ECB_GCC_VERSION(major,minor) 0 |
580 | #define ECB_GCC_VERSION(major,minor) 0 |
529 | #else |
581 | #else |
530 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
582 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
531 | #endif |
583 | #endif |
532 | #endif |
584 | #endif |
533 | |
585 | |
|
|
586 | #define ECB_CPP (__cplusplus+0) |
|
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587 | #define ECB_CPP11 (__cplusplus >= 201103L) |
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588 | |
|
|
589 | #if ECB_CPP |
|
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590 | #define ECB_C 0 |
|
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591 | #define ECB_STDC_VERSION 0 |
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592 | #else |
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|
593 | #define ECB_C 1 |
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|
594 | #define ECB_STDC_VERSION __STDC_VERSION__ |
|
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595 | #endif |
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|
596 | |
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|
597 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
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|
598 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
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599 | |
|
|
600 | #if ECB_CPP |
|
|
601 | #define ECB_EXTERN_C extern "C" |
|
|
602 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
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|
603 | #define ECB_EXTERN_C_END } |
|
|
604 | #else |
|
|
605 | #define ECB_EXTERN_C extern |
|
|
606 | #define ECB_EXTERN_C_BEG |
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|
607 | #define ECB_EXTERN_C_END |
|
|
608 | #endif |
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609 | |
534 | /*****************************************************************************/ |
610 | /*****************************************************************************/ |
535 | |
611 | |
536 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
612 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
537 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
613 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
538 | |
614 | |
539 | #if ECB_NO_THREADS || ECB_NO_SMP |
615 | #if ECB_NO_THREADS |
|
|
616 | #define ECB_NO_SMP 1 |
|
|
617 | #endif |
|
|
618 | |
|
|
619 | #if ECB_NO_SMP |
540 | #define ECB_MEMORY_FENCE do { } while (0) |
620 | #define ECB_MEMORY_FENCE do { } while (0) |
541 | #endif |
621 | #endif |
542 | |
622 | |
543 | #ifndef ECB_MEMORY_FENCE |
623 | #ifndef ECB_MEMORY_FENCE |
544 | #if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || defined(__clang__) |
624 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
545 | #if __i386__ |
625 | #if __i386 || __i386__ |
546 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
626 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
547 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ |
627 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
548 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ |
628 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
549 | #elif __amd64 |
629 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
550 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
630 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
551 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
631 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
552 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ |
632 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
553 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
633 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
554 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
634 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
555 | #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ |
635 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
556 | || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) |
636 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
557 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
637 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
558 | #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \ |
638 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
559 | || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) |
639 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
560 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
640 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
641 | #elif __aarch64__ |
|
|
642 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
|
|
643 | #elif (__sparc || __sparc__) && !__sparcv8 |
|
|
644 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
|
|
645 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
|
|
646 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
647 | #elif defined __s390__ || defined __s390x__ |
|
|
648 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
649 | #elif defined __mips__ |
|
|
650 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
651 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
|
|
652 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
|
|
653 | #elif defined __alpha__ |
|
|
654 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
655 | #elif defined __hppa__ |
|
|
656 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
657 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
658 | #elif defined __ia64__ |
|
|
659 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
660 | #elif defined __m68k__ |
|
|
661 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
662 | #elif defined __m88k__ |
|
|
663 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
664 | #elif defined __sh__ |
|
|
665 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
561 | #endif |
666 | #endif |
562 | #endif |
667 | #endif |
563 | #endif |
668 | #endif |
564 | |
669 | |
565 | #ifndef ECB_MEMORY_FENCE |
670 | #ifndef ECB_MEMORY_FENCE |
|
|
671 | #if ECB_GCC_VERSION(4,7) |
|
|
672 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
673 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
674 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
675 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
676 | |
|
|
677 | /* The __has_feature syntax from clang is so misdesigned that we cannot use it |
|
|
678 | * without risking compile time errors with other compilers. We *could* |
|
|
679 | * define our own ecb_clang_has_feature, but I just can't be bothered to work |
|
|
680 | * around this shit time and again. |
|
|
681 | * #elif defined __clang && __has_feature (cxx_atomic) |
|
|
682 | * // see comment below (stdatomic.h) about the C11 memory model. |
|
|
683 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
684 | * #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
685 | * #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
686 | */ |
|
|
687 | |
566 | #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__) |
688 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
567 | #define ECB_MEMORY_FENCE __sync_synchronize () |
689 | #define ECB_MEMORY_FENCE __sync_synchronize () |
568 | /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ |
690 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
569 | /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ |
691 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
|
|
692 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
693 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
|
|
694 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
695 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
570 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
696 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
571 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
697 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
572 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
698 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
573 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
699 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
574 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
700 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
575 | #elif defined(_WIN32) |
701 | #elif defined _WIN32 |
576 | #include <WinNT.h> |
702 | #include <WinNT.h> |
577 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
703 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
704 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
705 | #include <mbarrier.h> |
|
|
706 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
707 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
|
|
708 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
|
|
709 | #elif __xlC__ |
|
|
710 | #define ECB_MEMORY_FENCE __sync () |
|
|
711 | #endif |
|
|
712 | #endif |
|
|
713 | |
|
|
714 | #ifndef ECB_MEMORY_FENCE |
|
|
715 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
716 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
717 | /* not just C11 atomics and atomic accesses */ |
|
|
718 | #include <stdatomic.h> |
|
|
719 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
720 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
721 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
722 | /* for most usages, or gcc and clang have a bug */ |
|
|
723 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
724 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
725 | /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */ |
|
|
726 | /* for all __atomic_thread_fence's except seq_cst */ |
|
|
727 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
578 | #endif |
728 | #endif |
579 | #endif |
729 | #endif |
580 | |
730 | |
581 | #ifndef ECB_MEMORY_FENCE |
731 | #ifndef ECB_MEMORY_FENCE |
582 | #if !ECB_AVOID_PTHREADS |
732 | #if !ECB_AVOID_PTHREADS |
… | |
… | |
594 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
744 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
595 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
745 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
596 | #endif |
746 | #endif |
597 | #endif |
747 | #endif |
598 | |
748 | |
599 | #if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) |
749 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
600 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
750 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
601 | #endif |
751 | #endif |
602 | |
752 | |
603 | #if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) |
753 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
604 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
754 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
605 | #endif |
755 | #endif |
606 | |
756 | |
607 | /*****************************************************************************/ |
757 | /*****************************************************************************/ |
608 | |
|
|
609 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
|
|
610 | |
758 | |
611 | #if __cplusplus |
759 | #if __cplusplus |
612 | #define ecb_inline static inline |
760 | #define ecb_inline static inline |
613 | #elif ECB_GCC_VERSION(2,5) |
761 | #elif ECB_GCC_VERSION(2,5) |
614 | #define ecb_inline static __inline__ |
762 | #define ecb_inline static __inline__ |
… | |
… | |
640 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
788 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
641 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
789 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
642 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
790 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
643 | #else |
791 | #else |
644 | #define ecb_attribute(attrlist) |
792 | #define ecb_attribute(attrlist) |
|
|
793 | |
|
|
794 | /* possible C11 impl for integral types |
|
|
795 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
|
|
796 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
|
|
797 | |
645 | #define ecb_is_constant(expr) 0 |
798 | #define ecb_is_constant(expr) 0 |
646 | #define ecb_expect(expr,value) (expr) |
799 | #define ecb_expect(expr,value) (expr) |
647 | #define ecb_prefetch(addr,rw,locality) |
800 | #define ecb_prefetch(addr,rw,locality) |
648 | #endif |
801 | #endif |
649 | |
802 | |
… | |
… | |
652 | #define ecb_decltype(x) __decltype(x) |
805 | #define ecb_decltype(x) __decltype(x) |
653 | #elif ECB_GCC_VERSION(3,0) |
806 | #elif ECB_GCC_VERSION(3,0) |
654 | #define ecb_decltype(x) __typeof(x) |
807 | #define ecb_decltype(x) __typeof(x) |
655 | #endif |
808 | #endif |
656 | |
809 | |
|
|
810 | #if _MSC_VER >= 1300 |
|
|
811 | #define ecb_deprecated __declspec(deprecated) |
|
|
812 | #else |
|
|
813 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
|
|
814 | #endif |
|
|
815 | |
657 | #define ecb_noinline ecb_attribute ((__noinline__)) |
816 | #define ecb_noinline ecb_attribute ((__noinline__)) |
658 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
659 | #define ecb_unused ecb_attribute ((__unused__)) |
817 | #define ecb_unused ecb_attribute ((__unused__)) |
660 | #define ecb_const ecb_attribute ((__const__)) |
818 | #define ecb_const ecb_attribute ((__const__)) |
661 | #define ecb_pure ecb_attribute ((__pure__)) |
819 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
820 | |
|
|
821 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx __declspec(noreturn) */ |
|
|
822 | #if ECB_C11 |
|
|
823 | #define ecb_noreturn _Noreturn |
|
|
824 | #else |
|
|
825 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
826 | #endif |
662 | |
827 | |
663 | #if ECB_GCC_VERSION(4,3) |
828 | #if ECB_GCC_VERSION(4,3) |
664 | #define ecb_artificial ecb_attribute ((__artificial__)) |
829 | #define ecb_artificial ecb_attribute ((__artificial__)) |
665 | #define ecb_hot ecb_attribute ((__hot__)) |
830 | #define ecb_hot ecb_attribute ((__hot__)) |
666 | #define ecb_cold ecb_attribute ((__cold__)) |
831 | #define ecb_cold ecb_attribute ((__cold__)) |
… | |
… | |
757 | |
922 | |
758 | return r + ecb_ld32 (x); |
923 | return r + ecb_ld32 (x); |
759 | } |
924 | } |
760 | #endif |
925 | #endif |
761 | |
926 | |
|
|
927 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; |
|
|
928 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
929 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; |
|
|
930 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
931 | |
|
|
932 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
|
|
933 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
|
|
934 | { |
|
|
935 | return ( (x * 0x0802U & 0x22110U) |
|
|
936 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
937 | } |
|
|
938 | |
|
|
939 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
|
|
940 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
|
|
941 | { |
|
|
942 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
943 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
944 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
945 | x = ( x >> 8 ) | ( x << 8); |
|
|
946 | |
|
|
947 | return x; |
|
|
948 | } |
|
|
949 | |
|
|
950 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
|
|
951 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
|
|
952 | { |
|
|
953 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
954 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
955 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
956 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
957 | x = ( x >> 16 ) | ( x << 16); |
|
|
958 | |
|
|
959 | return x; |
|
|
960 | } |
|
|
961 | |
762 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
962 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
763 | /* so for this version we are lazy */ |
963 | /* so for this version we are lazy */ |
764 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
964 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
765 | ecb_function_ int |
965 | ecb_function_ int |
766 | ecb_popcount64 (uint64_t x) |
966 | ecb_popcount64 (uint64_t x) |
… | |
… | |
815 | |
1015 | |
816 | #if ECB_GCC_VERSION(4,5) |
1016 | #if ECB_GCC_VERSION(4,5) |
817 | #define ecb_unreachable() __builtin_unreachable () |
1017 | #define ecb_unreachable() __builtin_unreachable () |
818 | #else |
1018 | #else |
819 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
1019 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
820 | ecb_function_ void ecb_unreachable (void) ecb_noreturn; |
1020 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
821 | ecb_function_ void ecb_unreachable (void) { } |
1021 | ecb_inline void ecb_unreachable (void) { } |
822 | #endif |
1022 | #endif |
823 | |
1023 | |
824 | /* try to tell the compiler that some condition is definitely true */ |
1024 | /* try to tell the compiler that some condition is definitely true */ |
825 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
1025 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
826 | |
1026 | |
827 | ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const; |
1027 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
828 | ecb_function_ unsigned char |
1028 | ecb_inline unsigned char |
829 | ecb_byteorder_helper (void) |
1029 | ecb_byteorder_helper (void) |
830 | { |
1030 | { |
831 | const uint32_t u = 0x11223344; |
1031 | /* the union code still generates code under pressure in gcc, */ |
832 | return *(unsigned char *)&u; |
1032 | /* but less than using pointers, and always seems to */ |
|
|
1033 | /* successfully return a constant. */ |
|
|
1034 | /* the reason why we have this horrible preprocessor mess */ |
|
|
1035 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
1036 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
1037 | #if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64 |
|
|
1038 | return 0x44; |
|
|
1039 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ |
|
|
1040 | return 0x44; |
|
|
1041 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
|
|
1042 | return 0x11; |
|
|
1043 | #else |
|
|
1044 | union |
|
|
1045 | { |
|
|
1046 | uint32_t i; |
|
|
1047 | uint8_t c; |
|
|
1048 | } u = { 0x11223344 }; |
|
|
1049 | return u.c; |
|
|
1050 | #endif |
833 | } |
1051 | } |
834 | |
1052 | |
835 | ecb_function_ ecb_bool ecb_big_endian (void) ecb_const; |
1053 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
836 | ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
1054 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
837 | ecb_function_ ecb_bool ecb_little_endian (void) ecb_const; |
1055 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
838 | ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
1056 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
839 | |
1057 | |
840 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1058 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
841 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
1059 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
842 | #else |
1060 | #else |
843 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
1061 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
… | |
… | |
868 | } |
1086 | } |
869 | #else |
1087 | #else |
870 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1088 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
871 | #endif |
1089 | #endif |
872 | |
1090 | |
|
|
1091 | /*******************************************************************************/ |
|
|
1092 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1093 | |
|
|
1094 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1095 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1096 | #if 0 \ |
|
|
1097 | || __i386 || __i386__ \ |
|
|
1098 | || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ |
|
|
1099 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1100 | || defined __s390__ || defined __s390x__ \ |
|
|
1101 | || defined __mips__ \ |
|
|
1102 | || defined __alpha__ \ |
|
|
1103 | || defined __hppa__ \ |
|
|
1104 | || defined __ia64__ \ |
|
|
1105 | || defined __m68k__ \ |
|
|
1106 | || defined __m88k__ \ |
|
|
1107 | || defined __sh__ \ |
|
|
1108 | || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \ |
|
|
1109 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
|
|
1110 | || defined __aarch64__ |
|
|
1111 | #define ECB_STDFP 1 |
|
|
1112 | #include <string.h> /* for memcpy */ |
|
|
1113 | #else |
|
|
1114 | #define ECB_STDFP 0 |
|
|
1115 | #endif |
|
|
1116 | |
|
|
1117 | #ifndef ECB_NO_LIBM |
|
|
1118 | |
|
|
1119 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1120 | |
|
|
1121 | /* only the oldest of old doesn't have this one. solaris. */ |
|
|
1122 | #ifdef INFINITY |
|
|
1123 | #define ECB_INFINITY INFINITY |
|
|
1124 | #else |
|
|
1125 | #define ECB_INFINITY HUGE_VAL |
|
|
1126 | #endif |
|
|
1127 | |
|
|
1128 | #ifdef NAN |
|
|
1129 | #define ECB_NAN NAN |
|
|
1130 | #else |
|
|
1131 | #define ECB_NAN ECB_INFINITY |
|
|
1132 | #endif |
|
|
1133 | |
|
|
1134 | /* converts an ieee half/binary16 to a float */ |
|
|
1135 | ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; |
|
|
1136 | ecb_function_ float |
|
|
1137 | ecb_binary16_to_float (uint16_t x) |
|
|
1138 | { |
|
|
1139 | int e = (x >> 10) & 0x1f; |
|
|
1140 | int m = x & 0x3ff; |
|
|
1141 | float r; |
|
|
1142 | |
|
|
1143 | if (!e ) r = ldexpf (m , -24); |
|
|
1144 | else if (e != 31) r = ldexpf (m + 0x400, e - 25); |
|
|
1145 | else if (m ) r = ECB_NAN; |
|
|
1146 | else r = ECB_INFINITY; |
|
|
1147 | |
|
|
1148 | return x & 0x8000 ? -r : r; |
|
|
1149 | } |
|
|
1150 | |
|
|
1151 | /* convert a float to ieee single/binary32 */ |
|
|
1152 | ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; |
|
|
1153 | ecb_function_ uint32_t |
|
|
1154 | ecb_float_to_binary32 (float x) |
|
|
1155 | { |
|
|
1156 | uint32_t r; |
|
|
1157 | |
|
|
1158 | #if ECB_STDFP |
|
|
1159 | memcpy (&r, &x, 4); |
|
|
1160 | #else |
|
|
1161 | /* slow emulation, works for anything but -0 */ |
|
|
1162 | uint32_t m; |
|
|
1163 | int e; |
|
|
1164 | |
|
|
1165 | if (x == 0e0f ) return 0x00000000U; |
|
|
1166 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1167 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1168 | if (x != x ) return 0x7fbfffffU; |
|
|
1169 | |
|
|
1170 | m = frexpf (x, &e) * 0x1000000U; |
|
|
1171 | |
|
|
1172 | r = m & 0x80000000U; |
|
|
1173 | |
|
|
1174 | if (r) |
|
|
1175 | m = -m; |
|
|
1176 | |
|
|
1177 | if (e <= -126) |
|
|
1178 | { |
|
|
1179 | m &= 0xffffffU; |
|
|
1180 | m >>= (-125 - e); |
|
|
1181 | e = -126; |
|
|
1182 | } |
|
|
1183 | |
|
|
1184 | r |= (e + 126) << 23; |
|
|
1185 | r |= m & 0x7fffffU; |
|
|
1186 | #endif |
|
|
1187 | |
|
|
1188 | return r; |
|
|
1189 | } |
|
|
1190 | |
|
|
1191 | /* converts an ieee single/binary32 to a float */ |
|
|
1192 | ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; |
|
|
1193 | ecb_function_ float |
|
|
1194 | ecb_binary32_to_float (uint32_t x) |
|
|
1195 | { |
|
|
1196 | float r; |
|
|
1197 | |
|
|
1198 | #if ECB_STDFP |
|
|
1199 | memcpy (&r, &x, 4); |
|
|
1200 | #else |
|
|
1201 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1202 | int neg = x >> 31; |
|
|
1203 | int e = (x >> 23) & 0xffU; |
|
|
1204 | |
|
|
1205 | x &= 0x7fffffU; |
|
|
1206 | |
|
|
1207 | if (e) |
|
|
1208 | x |= 0x800000U; |
|
|
1209 | else |
|
|
1210 | e = 1; |
|
|
1211 | |
|
|
1212 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1213 | r = ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1214 | |
|
|
1215 | r = neg ? -r : r; |
|
|
1216 | #endif |
|
|
1217 | |
|
|
1218 | return r; |
|
|
1219 | } |
|
|
1220 | |
|
|
1221 | /* convert a double to ieee double/binary64 */ |
|
|
1222 | ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; |
|
|
1223 | ecb_function_ uint64_t |
|
|
1224 | ecb_double_to_binary64 (double x) |
|
|
1225 | { |
|
|
1226 | uint64_t r; |
|
|
1227 | |
|
|
1228 | #if ECB_STDFP |
|
|
1229 | memcpy (&r, &x, 8); |
|
|
1230 | #else |
|
|
1231 | /* slow emulation, works for anything but -0 */ |
|
|
1232 | uint64_t m; |
|
|
1233 | int e; |
|
|
1234 | |
|
|
1235 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1236 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1237 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1238 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1239 | |
|
|
1240 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1241 | |
|
|
1242 | r = m & 0x8000000000000000;; |
|
|
1243 | |
|
|
1244 | if (r) |
|
|
1245 | m = -m; |
|
|
1246 | |
|
|
1247 | if (e <= -1022) |
|
|
1248 | { |
|
|
1249 | m &= 0x1fffffffffffffU; |
|
|
1250 | m >>= (-1021 - e); |
|
|
1251 | e = -1022; |
|
|
1252 | } |
|
|
1253 | |
|
|
1254 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1255 | r |= m & 0xfffffffffffffU; |
|
|
1256 | #endif |
|
|
1257 | |
|
|
1258 | return r; |
|
|
1259 | } |
|
|
1260 | |
|
|
1261 | /* converts an ieee double/binary64 to a double */ |
|
|
1262 | ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; |
|
|
1263 | ecb_function_ double |
|
|
1264 | ecb_binary64_to_double (uint64_t x) |
|
|
1265 | { |
|
|
1266 | double r; |
|
|
1267 | |
|
|
1268 | #if ECB_STDFP |
|
|
1269 | memcpy (&r, &x, 8); |
|
|
1270 | #else |
|
|
1271 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1272 | int neg = x >> 63; |
|
|
1273 | int e = (x >> 52) & 0x7ffU; |
|
|
1274 | |
|
|
1275 | x &= 0xfffffffffffffU; |
|
|
1276 | |
|
|
1277 | if (e) |
|
|
1278 | x |= 0x10000000000000U; |
|
|
1279 | else |
|
|
1280 | e = 1; |
|
|
1281 | |
|
|
1282 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1283 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1284 | |
|
|
1285 | r = neg ? -r : r; |
|
|
1286 | #endif |
|
|
1287 | |
|
|
1288 | return r; |
|
|
1289 | } |
|
|
1290 | |
|
|
1291 | #endif |
|
|
1292 | |
873 | #endif |
1293 | #endif |
874 | |
1294 | |
875 | /* ECB.H END */ |
1295 | /* ECB.H END */ |
876 | |
1296 | |
877 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
1297 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
878 | /* if your architecture doesn't need memory fences, e.g. because it is |
1298 | /* if your architecture doesn't need memory fences, e.g. because it is |
879 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
1299 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
880 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
1300 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
881 | * libev, in which casess the memory fences become nops. |
1301 | * libev, in which cases the memory fences become nops. |
882 | * alternatively, you can remove this #error and link against libpthread, |
1302 | * alternatively, you can remove this #error and link against libpthread, |
883 | * which will then provide the memory fences. |
1303 | * which will then provide the memory fences. |
884 | */ |
1304 | */ |
885 | # error "memory fences not defined for your architecture, please report" |
1305 | # error "memory fences not defined for your architecture, please report" |
886 | #endif |
1306 | #endif |
… | |
… | |
1043 | { |
1463 | { |
1044 | write (STDERR_FILENO, msg, strlen (msg)); |
1464 | write (STDERR_FILENO, msg, strlen (msg)); |
1045 | } |
1465 | } |
1046 | #endif |
1466 | #endif |
1047 | |
1467 | |
1048 | static void (*syserr_cb)(const char *msg); |
1468 | static void (*syserr_cb)(const char *msg) EV_THROW; |
1049 | |
1469 | |
1050 | void ecb_cold |
1470 | void ecb_cold |
1051 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1471 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
1052 | { |
1472 | { |
1053 | syserr_cb = cb; |
1473 | syserr_cb = cb; |
1054 | } |
1474 | } |
1055 | |
1475 | |
1056 | static void noinline ecb_cold |
1476 | static void noinline ecb_cold |
… | |
… | |
1074 | abort (); |
1494 | abort (); |
1075 | } |
1495 | } |
1076 | } |
1496 | } |
1077 | |
1497 | |
1078 | static void * |
1498 | static void * |
1079 | ev_realloc_emul (void *ptr, long size) |
1499 | ev_realloc_emul (void *ptr, long size) EV_THROW |
1080 | { |
1500 | { |
1081 | #if __GLIBC__ |
|
|
1082 | return realloc (ptr, size); |
|
|
1083 | #else |
|
|
1084 | /* some systems, notably openbsd and darwin, fail to properly |
1501 | /* some systems, notably openbsd and darwin, fail to properly |
1085 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1502 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1086 | * the single unix specification, so work around them here. |
1503 | * the single unix specification, so work around them here. |
|
|
1504 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1505 | * despite documenting it otherwise. |
1087 | */ |
1506 | */ |
1088 | |
1507 | |
1089 | if (size) |
1508 | if (size) |
1090 | return realloc (ptr, size); |
1509 | return realloc (ptr, size); |
1091 | |
1510 | |
1092 | free (ptr); |
1511 | free (ptr); |
1093 | return 0; |
1512 | return 0; |
1094 | #endif |
|
|
1095 | } |
1513 | } |
1096 | |
1514 | |
1097 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1515 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
1098 | |
1516 | |
1099 | void ecb_cold |
1517 | void ecb_cold |
1100 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1518 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
1101 | { |
1519 | { |
1102 | alloc = cb; |
1520 | alloc = cb; |
1103 | } |
1521 | } |
1104 | |
1522 | |
1105 | inline_speed void * |
1523 | inline_speed void * |
… | |
… | |
1193 | #undef VAR |
1611 | #undef VAR |
1194 | }; |
1612 | }; |
1195 | #include "ev_wrap.h" |
1613 | #include "ev_wrap.h" |
1196 | |
1614 | |
1197 | static struct ev_loop default_loop_struct; |
1615 | static struct ev_loop default_loop_struct; |
1198 | struct ev_loop *ev_default_loop_ptr; |
1616 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
1199 | |
1617 | |
1200 | #else |
1618 | #else |
1201 | |
1619 | |
1202 | ev_tstamp ev_rt_now; |
1620 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
1203 | #define VAR(name,decl) static decl; |
1621 | #define VAR(name,decl) static decl; |
1204 | #include "ev_vars.h" |
1622 | #include "ev_vars.h" |
1205 | #undef VAR |
1623 | #undef VAR |
1206 | |
1624 | |
1207 | static int ev_default_loop_ptr; |
1625 | static int ev_default_loop_ptr; |
… | |
… | |
1222 | |
1640 | |
1223 | /*****************************************************************************/ |
1641 | /*****************************************************************************/ |
1224 | |
1642 | |
1225 | #ifndef EV_HAVE_EV_TIME |
1643 | #ifndef EV_HAVE_EV_TIME |
1226 | ev_tstamp |
1644 | ev_tstamp |
1227 | ev_time (void) |
1645 | ev_time (void) EV_THROW |
1228 | { |
1646 | { |
1229 | #if EV_USE_REALTIME |
1647 | #if EV_USE_REALTIME |
1230 | if (expect_true (have_realtime)) |
1648 | if (expect_true (have_realtime)) |
1231 | { |
1649 | { |
1232 | struct timespec ts; |
1650 | struct timespec ts; |
… | |
… | |
1256 | return ev_time (); |
1674 | return ev_time (); |
1257 | } |
1675 | } |
1258 | |
1676 | |
1259 | #if EV_MULTIPLICITY |
1677 | #if EV_MULTIPLICITY |
1260 | ev_tstamp |
1678 | ev_tstamp |
1261 | ev_now (EV_P) |
1679 | ev_now (EV_P) EV_THROW |
1262 | { |
1680 | { |
1263 | return ev_rt_now; |
1681 | return ev_rt_now; |
1264 | } |
1682 | } |
1265 | #endif |
1683 | #endif |
1266 | |
1684 | |
1267 | void |
1685 | void |
1268 | ev_sleep (ev_tstamp delay) |
1686 | ev_sleep (ev_tstamp delay) EV_THROW |
1269 | { |
1687 | { |
1270 | if (delay > 0.) |
1688 | if (delay > 0.) |
1271 | { |
1689 | { |
1272 | #if EV_USE_NANOSLEEP |
1690 | #if EV_USE_NANOSLEEP |
1273 | struct timespec ts; |
1691 | struct timespec ts; |
1274 | |
1692 | |
1275 | EV_TS_SET (ts, delay); |
1693 | EV_TS_SET (ts, delay); |
1276 | nanosleep (&ts, 0); |
1694 | nanosleep (&ts, 0); |
1277 | #elif defined(_WIN32) |
1695 | #elif defined _WIN32 |
1278 | Sleep ((unsigned long)(delay * 1e3)); |
1696 | Sleep ((unsigned long)(delay * 1e3)); |
1279 | #else |
1697 | #else |
1280 | struct timeval tv; |
1698 | struct timeval tv; |
1281 | |
1699 | |
1282 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1700 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
… | |
… | |
1354 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1772 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1355 | { |
1773 | { |
1356 | } |
1774 | } |
1357 | |
1775 | |
1358 | void noinline |
1776 | void noinline |
1359 | ev_feed_event (EV_P_ void *w, int revents) |
1777 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
1360 | { |
1778 | { |
1361 | W w_ = (W)w; |
1779 | W w_ = (W)w; |
1362 | int pri = ABSPRI (w_); |
1780 | int pri = ABSPRI (w_); |
1363 | |
1781 | |
1364 | if (expect_false (w_->pending)) |
1782 | if (expect_false (w_->pending)) |
… | |
… | |
1368 | w_->pending = ++pendingcnt [pri]; |
1786 | w_->pending = ++pendingcnt [pri]; |
1369 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
1787 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
1370 | pendings [pri][w_->pending - 1].w = w_; |
1788 | pendings [pri][w_->pending - 1].w = w_; |
1371 | pendings [pri][w_->pending - 1].events = revents; |
1789 | pendings [pri][w_->pending - 1].events = revents; |
1372 | } |
1790 | } |
|
|
1791 | |
|
|
1792 | pendingpri = NUMPRI - 1; |
1373 | } |
1793 | } |
1374 | |
1794 | |
1375 | inline_speed void |
1795 | inline_speed void |
1376 | feed_reverse (EV_P_ W w) |
1796 | feed_reverse (EV_P_ W w) |
1377 | { |
1797 | { |
… | |
… | |
1423 | if (expect_true (!anfd->reify)) |
1843 | if (expect_true (!anfd->reify)) |
1424 | fd_event_nocheck (EV_A_ fd, revents); |
1844 | fd_event_nocheck (EV_A_ fd, revents); |
1425 | } |
1845 | } |
1426 | |
1846 | |
1427 | void |
1847 | void |
1428 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1848 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
1429 | { |
1849 | { |
1430 | if (fd >= 0 && fd < anfdmax) |
1850 | if (fd >= 0 && fd < anfdmax) |
1431 | fd_event_nocheck (EV_A_ fd, revents); |
1851 | fd_event_nocheck (EV_A_ fd, revents); |
1432 | } |
1852 | } |
1433 | |
1853 | |
… | |
… | |
1752 | static void noinline ecb_cold |
2172 | static void noinline ecb_cold |
1753 | evpipe_init (EV_P) |
2173 | evpipe_init (EV_P) |
1754 | { |
2174 | { |
1755 | if (!ev_is_active (&pipe_w)) |
2175 | if (!ev_is_active (&pipe_w)) |
1756 | { |
2176 | { |
|
|
2177 | int fds [2]; |
|
|
2178 | |
1757 | # if EV_USE_EVENTFD |
2179 | # if EV_USE_EVENTFD |
|
|
2180 | fds [0] = -1; |
1758 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2181 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1759 | if (evfd < 0 && errno == EINVAL) |
2182 | if (fds [1] < 0 && errno == EINVAL) |
1760 | evfd = eventfd (0, 0); |
2183 | fds [1] = eventfd (0, 0); |
1761 | |
2184 | |
1762 | if (evfd >= 0) |
2185 | if (fds [1] < 0) |
|
|
2186 | # endif |
1763 | { |
2187 | { |
|
|
2188 | while (pipe (fds)) |
|
|
2189 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2190 | |
|
|
2191 | fd_intern (fds [0]); |
|
|
2192 | } |
|
|
2193 | |
1764 | evpipe [0] = -1; |
2194 | evpipe [0] = fds [0]; |
1765 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
2195 | |
1766 | ev_io_set (&pipe_w, evfd, EV_READ); |
2196 | if (evpipe [1] < 0) |
|
|
2197 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2198 | else |
|
|
2199 | { |
|
|
2200 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2201 | /* so that evpipe_write can always rely on its value. */ |
|
|
2202 | /* this branch does not do anything sensible on windows, */ |
|
|
2203 | /* so must not be executed on windows */ |
|
|
2204 | |
|
|
2205 | dup2 (fds [1], evpipe [1]); |
|
|
2206 | close (fds [1]); |
|
|
2207 | } |
|
|
2208 | |
|
|
2209 | fd_intern (evpipe [1]); |
|
|
2210 | |
|
|
2211 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2212 | ev_io_start (EV_A_ &pipe_w); |
|
|
2213 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2214 | } |
|
|
2215 | } |
|
|
2216 | |
|
|
2217 | inline_speed void |
|
|
2218 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
2219 | { |
|
|
2220 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
|
|
2221 | |
|
|
2222 | if (expect_true (*flag)) |
|
|
2223 | return; |
|
|
2224 | |
|
|
2225 | *flag = 1; |
|
|
2226 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2227 | |
|
|
2228 | pipe_write_skipped = 1; |
|
|
2229 | |
|
|
2230 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2231 | |
|
|
2232 | if (pipe_write_wanted) |
|
|
2233 | { |
|
|
2234 | int old_errno; |
|
|
2235 | |
|
|
2236 | pipe_write_skipped = 0; |
|
|
2237 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2238 | |
|
|
2239 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2240 | |
|
|
2241 | #if EV_USE_EVENTFD |
|
|
2242 | if (evpipe [0] < 0) |
|
|
2243 | { |
|
|
2244 | uint64_t counter = 1; |
|
|
2245 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1767 | } |
2246 | } |
1768 | else |
2247 | else |
1769 | # endif |
2248 | #endif |
1770 | { |
2249 | { |
1771 | while (pipe (evpipe)) |
2250 | #ifdef _WIN32 |
1772 | ev_syserr ("(libev) error creating signal/async pipe"); |
2251 | WSABUF buf; |
1773 | |
2252 | DWORD sent; |
1774 | fd_intern (evpipe [0]); |
2253 | buf.buf = &buf; |
1775 | fd_intern (evpipe [1]); |
2254 | buf.len = 1; |
1776 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
2255 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
1777 | } |
2256 | #else |
1778 | |
|
|
1779 | ev_io_start (EV_A_ &pipe_w); |
|
|
1780 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1781 | } |
|
|
1782 | } |
|
|
1783 | |
|
|
1784 | inline_speed void |
|
|
1785 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1786 | { |
|
|
1787 | if (expect_true (*flag)) |
|
|
1788 | return; |
|
|
1789 | |
|
|
1790 | *flag = 1; |
|
|
1791 | |
|
|
1792 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
1793 | |
|
|
1794 | pipe_write_skipped = 1; |
|
|
1795 | |
|
|
1796 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
1797 | |
|
|
1798 | if (pipe_write_wanted) |
|
|
1799 | { |
|
|
1800 | int old_errno; |
|
|
1801 | |
|
|
1802 | pipe_write_skipped = 0; /* just an optimisation, no fence needed */ |
|
|
1803 | |
|
|
1804 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
1805 | |
|
|
1806 | #if EV_USE_EVENTFD |
|
|
1807 | if (evfd >= 0) |
|
|
1808 | { |
|
|
1809 | uint64_t counter = 1; |
|
|
1810 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1811 | } |
|
|
1812 | else |
|
|
1813 | #endif |
|
|
1814 | { |
|
|
1815 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1816 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1817 | /* so when you think this write should be a send instead, please find out */ |
|
|
1818 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1819 | /* tell me. thank you. */ |
|
|
1820 | write (evpipe [1], &(evpipe [1]), 1); |
2257 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2258 | #endif |
1821 | } |
2259 | } |
1822 | |
2260 | |
1823 | errno = old_errno; |
2261 | errno = old_errno; |
1824 | } |
2262 | } |
1825 | } |
2263 | } |
… | |
… | |
1832 | int i; |
2270 | int i; |
1833 | |
2271 | |
1834 | if (revents & EV_READ) |
2272 | if (revents & EV_READ) |
1835 | { |
2273 | { |
1836 | #if EV_USE_EVENTFD |
2274 | #if EV_USE_EVENTFD |
1837 | if (evfd >= 0) |
2275 | if (evpipe [0] < 0) |
1838 | { |
2276 | { |
1839 | uint64_t counter; |
2277 | uint64_t counter; |
1840 | read (evfd, &counter, sizeof (uint64_t)); |
2278 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1841 | } |
2279 | } |
1842 | else |
2280 | else |
1843 | #endif |
2281 | #endif |
1844 | { |
2282 | { |
1845 | char dummy; |
2283 | char dummy[4]; |
1846 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
2284 | #ifdef _WIN32 |
|
|
2285 | WSABUF buf; |
|
|
2286 | DWORD recvd; |
|
|
2287 | DWORD flags = 0; |
|
|
2288 | buf.buf = dummy; |
|
|
2289 | buf.len = sizeof (dummy); |
|
|
2290 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2291 | #else |
1847 | read (evpipe [0], &dummy, 1); |
2292 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2293 | #endif |
1848 | } |
2294 | } |
1849 | } |
2295 | } |
1850 | |
2296 | |
1851 | pipe_write_skipped = 0; |
2297 | pipe_write_skipped = 0; |
|
|
2298 | |
|
|
2299 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
1852 | |
2300 | |
1853 | #if EV_SIGNAL_ENABLE |
2301 | #if EV_SIGNAL_ENABLE |
1854 | if (sig_pending) |
2302 | if (sig_pending) |
1855 | { |
2303 | { |
1856 | sig_pending = 0; |
2304 | sig_pending = 0; |
|
|
2305 | |
|
|
2306 | ECB_MEMORY_FENCE; |
1857 | |
2307 | |
1858 | for (i = EV_NSIG - 1; i--; ) |
2308 | for (i = EV_NSIG - 1; i--; ) |
1859 | if (expect_false (signals [i].pending)) |
2309 | if (expect_false (signals [i].pending)) |
1860 | ev_feed_signal_event (EV_A_ i + 1); |
2310 | ev_feed_signal_event (EV_A_ i + 1); |
1861 | } |
2311 | } |
… | |
… | |
1863 | |
2313 | |
1864 | #if EV_ASYNC_ENABLE |
2314 | #if EV_ASYNC_ENABLE |
1865 | if (async_pending) |
2315 | if (async_pending) |
1866 | { |
2316 | { |
1867 | async_pending = 0; |
2317 | async_pending = 0; |
|
|
2318 | |
|
|
2319 | ECB_MEMORY_FENCE; |
1868 | |
2320 | |
1869 | for (i = asynccnt; i--; ) |
2321 | for (i = asynccnt; i--; ) |
1870 | if (asyncs [i]->sent) |
2322 | if (asyncs [i]->sent) |
1871 | { |
2323 | { |
1872 | asyncs [i]->sent = 0; |
2324 | asyncs [i]->sent = 0; |
|
|
2325 | ECB_MEMORY_FENCE_RELEASE; |
1873 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2326 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1874 | } |
2327 | } |
1875 | } |
2328 | } |
1876 | #endif |
2329 | #endif |
1877 | } |
2330 | } |
1878 | |
2331 | |
1879 | /*****************************************************************************/ |
2332 | /*****************************************************************************/ |
1880 | |
2333 | |
1881 | void |
2334 | void |
1882 | ev_feed_signal (int signum) |
2335 | ev_feed_signal (int signum) EV_THROW |
1883 | { |
2336 | { |
1884 | #if EV_MULTIPLICITY |
2337 | #if EV_MULTIPLICITY |
|
|
2338 | EV_P; |
|
|
2339 | ECB_MEMORY_FENCE_ACQUIRE; |
1885 | EV_P = signals [signum - 1].loop; |
2340 | EV_A = signals [signum - 1].loop; |
1886 | |
2341 | |
1887 | if (!EV_A) |
2342 | if (!EV_A) |
1888 | return; |
2343 | return; |
1889 | #endif |
2344 | #endif |
1890 | |
2345 | |
1891 | if (!ev_active (&pipe_w)) |
|
|
1892 | return; |
|
|
1893 | |
|
|
1894 | signals [signum - 1].pending = 1; |
2346 | signals [signum - 1].pending = 1; |
1895 | evpipe_write (EV_A_ &sig_pending); |
2347 | evpipe_write (EV_A_ &sig_pending); |
1896 | } |
2348 | } |
1897 | |
2349 | |
1898 | static void |
2350 | static void |
… | |
… | |
1904 | |
2356 | |
1905 | ev_feed_signal (signum); |
2357 | ev_feed_signal (signum); |
1906 | } |
2358 | } |
1907 | |
2359 | |
1908 | void noinline |
2360 | void noinline |
1909 | ev_feed_signal_event (EV_P_ int signum) |
2361 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
1910 | { |
2362 | { |
1911 | WL w; |
2363 | WL w; |
1912 | |
2364 | |
1913 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2365 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
1914 | return; |
2366 | return; |
1915 | |
2367 | |
1916 | --signum; |
2368 | --signum; |
1917 | |
2369 | |
1918 | #if EV_MULTIPLICITY |
2370 | #if EV_MULTIPLICITY |
… | |
… | |
1922 | if (expect_false (signals [signum].loop != EV_A)) |
2374 | if (expect_false (signals [signum].loop != EV_A)) |
1923 | return; |
2375 | return; |
1924 | #endif |
2376 | #endif |
1925 | |
2377 | |
1926 | signals [signum].pending = 0; |
2378 | signals [signum].pending = 0; |
|
|
2379 | ECB_MEMORY_FENCE_RELEASE; |
1927 | |
2380 | |
1928 | for (w = signals [signum].head; w; w = w->next) |
2381 | for (w = signals [signum].head; w; w = w->next) |
1929 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2382 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1930 | } |
2383 | } |
1931 | |
2384 | |
… | |
… | |
2030 | #if EV_USE_SELECT |
2483 | #if EV_USE_SELECT |
2031 | # include "ev_select.c" |
2484 | # include "ev_select.c" |
2032 | #endif |
2485 | #endif |
2033 | |
2486 | |
2034 | int ecb_cold |
2487 | int ecb_cold |
2035 | ev_version_major (void) |
2488 | ev_version_major (void) EV_THROW |
2036 | { |
2489 | { |
2037 | return EV_VERSION_MAJOR; |
2490 | return EV_VERSION_MAJOR; |
2038 | } |
2491 | } |
2039 | |
2492 | |
2040 | int ecb_cold |
2493 | int ecb_cold |
2041 | ev_version_minor (void) |
2494 | ev_version_minor (void) EV_THROW |
2042 | { |
2495 | { |
2043 | return EV_VERSION_MINOR; |
2496 | return EV_VERSION_MINOR; |
2044 | } |
2497 | } |
2045 | |
2498 | |
2046 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2499 | /* return true if we are running with elevated privileges and should ignore env variables */ |
… | |
… | |
2054 | || getgid () != getegid (); |
2507 | || getgid () != getegid (); |
2055 | #endif |
2508 | #endif |
2056 | } |
2509 | } |
2057 | |
2510 | |
2058 | unsigned int ecb_cold |
2511 | unsigned int ecb_cold |
2059 | ev_supported_backends (void) |
2512 | ev_supported_backends (void) EV_THROW |
2060 | { |
2513 | { |
2061 | unsigned int flags = 0; |
2514 | unsigned int flags = 0; |
2062 | |
2515 | |
2063 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2516 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2064 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2517 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
… | |
… | |
2068 | |
2521 | |
2069 | return flags; |
2522 | return flags; |
2070 | } |
2523 | } |
2071 | |
2524 | |
2072 | unsigned int ecb_cold |
2525 | unsigned int ecb_cold |
2073 | ev_recommended_backends (void) |
2526 | ev_recommended_backends (void) EV_THROW |
2074 | { |
2527 | { |
2075 | unsigned int flags = ev_supported_backends (); |
2528 | unsigned int flags = ev_supported_backends (); |
2076 | |
2529 | |
2077 | #ifndef __NetBSD__ |
2530 | #ifndef __NetBSD__ |
2078 | /* kqueue is borked on everything but netbsd apparently */ |
2531 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
2090 | |
2543 | |
2091 | return flags; |
2544 | return flags; |
2092 | } |
2545 | } |
2093 | |
2546 | |
2094 | unsigned int ecb_cold |
2547 | unsigned int ecb_cold |
2095 | ev_embeddable_backends (void) |
2548 | ev_embeddable_backends (void) EV_THROW |
2096 | { |
2549 | { |
2097 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2550 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2098 | |
2551 | |
2099 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2552 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2100 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
2553 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
… | |
… | |
2102 | |
2555 | |
2103 | return flags; |
2556 | return flags; |
2104 | } |
2557 | } |
2105 | |
2558 | |
2106 | unsigned int |
2559 | unsigned int |
2107 | ev_backend (EV_P) |
2560 | ev_backend (EV_P) EV_THROW |
2108 | { |
2561 | { |
2109 | return backend; |
2562 | return backend; |
2110 | } |
2563 | } |
2111 | |
2564 | |
2112 | #if EV_FEATURE_API |
2565 | #if EV_FEATURE_API |
2113 | unsigned int |
2566 | unsigned int |
2114 | ev_iteration (EV_P) |
2567 | ev_iteration (EV_P) EV_THROW |
2115 | { |
2568 | { |
2116 | return loop_count; |
2569 | return loop_count; |
2117 | } |
2570 | } |
2118 | |
2571 | |
2119 | unsigned int |
2572 | unsigned int |
2120 | ev_depth (EV_P) |
2573 | ev_depth (EV_P) EV_THROW |
2121 | { |
2574 | { |
2122 | return loop_depth; |
2575 | return loop_depth; |
2123 | } |
2576 | } |
2124 | |
2577 | |
2125 | void |
2578 | void |
2126 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2579 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
2127 | { |
2580 | { |
2128 | io_blocktime = interval; |
2581 | io_blocktime = interval; |
2129 | } |
2582 | } |
2130 | |
2583 | |
2131 | void |
2584 | void |
2132 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2585 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
2133 | { |
2586 | { |
2134 | timeout_blocktime = interval; |
2587 | timeout_blocktime = interval; |
2135 | } |
2588 | } |
2136 | |
2589 | |
2137 | void |
2590 | void |
2138 | ev_set_userdata (EV_P_ void *data) |
2591 | ev_set_userdata (EV_P_ void *data) EV_THROW |
2139 | { |
2592 | { |
2140 | userdata = data; |
2593 | userdata = data; |
2141 | } |
2594 | } |
2142 | |
2595 | |
2143 | void * |
2596 | void * |
2144 | ev_userdata (EV_P) |
2597 | ev_userdata (EV_P) EV_THROW |
2145 | { |
2598 | { |
2146 | return userdata; |
2599 | return userdata; |
2147 | } |
2600 | } |
2148 | |
2601 | |
2149 | void |
2602 | void |
2150 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
2603 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW |
2151 | { |
2604 | { |
2152 | invoke_cb = invoke_pending_cb; |
2605 | invoke_cb = invoke_pending_cb; |
2153 | } |
2606 | } |
2154 | |
2607 | |
2155 | void |
2608 | void |
2156 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
2609 | ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW |
2157 | { |
2610 | { |
2158 | release_cb = release; |
2611 | release_cb = release; |
2159 | acquire_cb = acquire; |
2612 | acquire_cb = acquire; |
2160 | } |
2613 | } |
2161 | #endif |
2614 | #endif |
2162 | |
2615 | |
2163 | /* initialise a loop structure, must be zero-initialised */ |
2616 | /* initialise a loop structure, must be zero-initialised */ |
2164 | static void noinline ecb_cold |
2617 | static void noinline ecb_cold |
2165 | loop_init (EV_P_ unsigned int flags) |
2618 | loop_init (EV_P_ unsigned int flags) EV_THROW |
2166 | { |
2619 | { |
2167 | if (!backend) |
2620 | if (!backend) |
2168 | { |
2621 | { |
2169 | origflags = flags; |
2622 | origflags = flags; |
2170 | |
2623 | |
… | |
… | |
2215 | #if EV_ASYNC_ENABLE |
2668 | #if EV_ASYNC_ENABLE |
2216 | async_pending = 0; |
2669 | async_pending = 0; |
2217 | #endif |
2670 | #endif |
2218 | pipe_write_skipped = 0; |
2671 | pipe_write_skipped = 0; |
2219 | pipe_write_wanted = 0; |
2672 | pipe_write_wanted = 0; |
|
|
2673 | evpipe [0] = -1; |
|
|
2674 | evpipe [1] = -1; |
2220 | #if EV_USE_INOTIFY |
2675 | #if EV_USE_INOTIFY |
2221 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2676 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2222 | #endif |
2677 | #endif |
2223 | #if EV_USE_SIGNALFD |
2678 | #if EV_USE_SIGNALFD |
2224 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2679 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
… | |
… | |
2275 | EV_INVOKE_PENDING; |
2730 | EV_INVOKE_PENDING; |
2276 | } |
2731 | } |
2277 | #endif |
2732 | #endif |
2278 | |
2733 | |
2279 | #if EV_CHILD_ENABLE |
2734 | #if EV_CHILD_ENABLE |
2280 | if (ev_is_active (&childev)) |
2735 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
2281 | { |
2736 | { |
2282 | ev_ref (EV_A); /* child watcher */ |
2737 | ev_ref (EV_A); /* child watcher */ |
2283 | ev_signal_stop (EV_A_ &childev); |
2738 | ev_signal_stop (EV_A_ &childev); |
2284 | } |
2739 | } |
2285 | #endif |
2740 | #endif |
… | |
… | |
2287 | if (ev_is_active (&pipe_w)) |
2742 | if (ev_is_active (&pipe_w)) |
2288 | { |
2743 | { |
2289 | /*ev_ref (EV_A);*/ |
2744 | /*ev_ref (EV_A);*/ |
2290 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2745 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2291 | |
2746 | |
2292 | #if EV_USE_EVENTFD |
|
|
2293 | if (evfd >= 0) |
|
|
2294 | close (evfd); |
|
|
2295 | #endif |
|
|
2296 | |
|
|
2297 | if (evpipe [0] >= 0) |
|
|
2298 | { |
|
|
2299 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2747 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
2300 | EV_WIN32_CLOSE_FD (evpipe [1]); |
2748 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
2301 | } |
|
|
2302 | } |
2749 | } |
2303 | |
2750 | |
2304 | #if EV_USE_SIGNALFD |
2751 | #if EV_USE_SIGNALFD |
2305 | if (ev_is_active (&sigfd_w)) |
2752 | if (ev_is_active (&sigfd_w)) |
2306 | close (sigfd); |
2753 | close (sigfd); |
… | |
… | |
2392 | #endif |
2839 | #endif |
2393 | #if EV_USE_INOTIFY |
2840 | #if EV_USE_INOTIFY |
2394 | infy_fork (EV_A); |
2841 | infy_fork (EV_A); |
2395 | #endif |
2842 | #endif |
2396 | |
2843 | |
|
|
2844 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2397 | if (ev_is_active (&pipe_w)) |
2845 | if (ev_is_active (&pipe_w)) |
2398 | { |
2846 | { |
2399 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2847 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2400 | |
2848 | |
2401 | ev_ref (EV_A); |
2849 | ev_ref (EV_A); |
2402 | ev_io_stop (EV_A_ &pipe_w); |
2850 | ev_io_stop (EV_A_ &pipe_w); |
2403 | |
2851 | |
2404 | #if EV_USE_EVENTFD |
|
|
2405 | if (evfd >= 0) |
|
|
2406 | close (evfd); |
|
|
2407 | #endif |
|
|
2408 | |
|
|
2409 | if (evpipe [0] >= 0) |
2852 | if (evpipe [0] >= 0) |
2410 | { |
|
|
2411 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2853 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2412 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
2413 | } |
|
|
2414 | |
2854 | |
2415 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
2416 | evpipe_init (EV_A); |
2855 | evpipe_init (EV_A); |
2417 | /* now iterate over everything, in case we missed something */ |
2856 | /* iterate over everything, in case we missed something before */ |
2418 | pipecb (EV_A_ &pipe_w, EV_READ); |
2857 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
2419 | #endif |
|
|
2420 | } |
2858 | } |
|
|
2859 | #endif |
2421 | |
2860 | |
2422 | postfork = 0; |
2861 | postfork = 0; |
2423 | } |
2862 | } |
2424 | |
2863 | |
2425 | #if EV_MULTIPLICITY |
2864 | #if EV_MULTIPLICITY |
2426 | |
2865 | |
2427 | struct ev_loop * ecb_cold |
2866 | struct ev_loop * ecb_cold |
2428 | ev_loop_new (unsigned int flags) |
2867 | ev_loop_new (unsigned int flags) EV_THROW |
2429 | { |
2868 | { |
2430 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2869 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2431 | |
2870 | |
2432 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2871 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2433 | loop_init (EV_A_ flags); |
2872 | loop_init (EV_A_ flags); |
… | |
… | |
2477 | } |
2916 | } |
2478 | #endif |
2917 | #endif |
2479 | |
2918 | |
2480 | #if EV_FEATURE_API |
2919 | #if EV_FEATURE_API |
2481 | void ecb_cold |
2920 | void ecb_cold |
2482 | ev_verify (EV_P) |
2921 | ev_verify (EV_P) EV_THROW |
2483 | { |
2922 | { |
2484 | #if EV_VERIFY |
2923 | #if EV_VERIFY |
2485 | int i; |
2924 | int i; |
2486 | WL w; |
2925 | WL w, w2; |
2487 | |
2926 | |
2488 | assert (activecnt >= -1); |
2927 | assert (activecnt >= -1); |
2489 | |
2928 | |
2490 | assert (fdchangemax >= fdchangecnt); |
2929 | assert (fdchangemax >= fdchangecnt); |
2491 | for (i = 0; i < fdchangecnt; ++i) |
2930 | for (i = 0; i < fdchangecnt; ++i) |
2492 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2931 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2493 | |
2932 | |
2494 | assert (anfdmax >= 0); |
2933 | assert (anfdmax >= 0); |
2495 | for (i = 0; i < anfdmax; ++i) |
2934 | for (i = 0; i < anfdmax; ++i) |
|
|
2935 | { |
|
|
2936 | int j = 0; |
|
|
2937 | |
2496 | for (w = anfds [i].head; w; w = w->next) |
2938 | for (w = w2 = anfds [i].head; w; w = w->next) |
2497 | { |
2939 | { |
2498 | verify_watcher (EV_A_ (W)w); |
2940 | verify_watcher (EV_A_ (W)w); |
|
|
2941 | |
|
|
2942 | if (j++ & 1) |
|
|
2943 | { |
|
|
2944 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
2945 | w2 = w2->next; |
|
|
2946 | } |
|
|
2947 | |
2499 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2948 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2500 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2949 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2501 | } |
2950 | } |
|
|
2951 | } |
2502 | |
2952 | |
2503 | assert (timermax >= timercnt); |
2953 | assert (timermax >= timercnt); |
2504 | verify_heap (EV_A_ timers, timercnt); |
2954 | verify_heap (EV_A_ timers, timercnt); |
2505 | |
2955 | |
2506 | #if EV_PERIODIC_ENABLE |
2956 | #if EV_PERIODIC_ENABLE |
… | |
… | |
2556 | #if EV_MULTIPLICITY |
3006 | #if EV_MULTIPLICITY |
2557 | struct ev_loop * ecb_cold |
3007 | struct ev_loop * ecb_cold |
2558 | #else |
3008 | #else |
2559 | int |
3009 | int |
2560 | #endif |
3010 | #endif |
2561 | ev_default_loop (unsigned int flags) |
3011 | ev_default_loop (unsigned int flags) EV_THROW |
2562 | { |
3012 | { |
2563 | if (!ev_default_loop_ptr) |
3013 | if (!ev_default_loop_ptr) |
2564 | { |
3014 | { |
2565 | #if EV_MULTIPLICITY |
3015 | #if EV_MULTIPLICITY |
2566 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
3016 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
2585 | |
3035 | |
2586 | return ev_default_loop_ptr; |
3036 | return ev_default_loop_ptr; |
2587 | } |
3037 | } |
2588 | |
3038 | |
2589 | void |
3039 | void |
2590 | ev_loop_fork (EV_P) |
3040 | ev_loop_fork (EV_P) EV_THROW |
2591 | { |
3041 | { |
2592 | postfork = 1; /* must be in line with ev_default_fork */ |
3042 | postfork = 1; |
2593 | } |
3043 | } |
2594 | |
3044 | |
2595 | /*****************************************************************************/ |
3045 | /*****************************************************************************/ |
2596 | |
3046 | |
2597 | void |
3047 | void |
… | |
… | |
2599 | { |
3049 | { |
2600 | EV_CB_INVOKE ((W)w, revents); |
3050 | EV_CB_INVOKE ((W)w, revents); |
2601 | } |
3051 | } |
2602 | |
3052 | |
2603 | unsigned int |
3053 | unsigned int |
2604 | ev_pending_count (EV_P) |
3054 | ev_pending_count (EV_P) EV_THROW |
2605 | { |
3055 | { |
2606 | int pri; |
3056 | int pri; |
2607 | unsigned int count = 0; |
3057 | unsigned int count = 0; |
2608 | |
3058 | |
2609 | for (pri = NUMPRI; pri--; ) |
3059 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
2613 | } |
3063 | } |
2614 | |
3064 | |
2615 | void noinline |
3065 | void noinline |
2616 | ev_invoke_pending (EV_P) |
3066 | ev_invoke_pending (EV_P) |
2617 | { |
3067 | { |
2618 | int pri; |
3068 | pendingpri = NUMPRI; |
2619 | |
3069 | |
2620 | for (pri = NUMPRI; pri--; ) |
3070 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
|
|
3071 | { |
|
|
3072 | --pendingpri; |
|
|
3073 | |
2621 | while (pendingcnt [pri]) |
3074 | while (pendingcnt [pendingpri]) |
2622 | { |
3075 | { |
2623 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
3076 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2624 | |
3077 | |
2625 | p->w->pending = 0; |
3078 | p->w->pending = 0; |
2626 | EV_CB_INVOKE (p->w, p->events); |
3079 | EV_CB_INVOKE (p->w, p->events); |
2627 | EV_FREQUENT_CHECK; |
3080 | EV_FREQUENT_CHECK; |
2628 | } |
3081 | } |
|
|
3082 | } |
2629 | } |
3083 | } |
2630 | |
3084 | |
2631 | #if EV_IDLE_ENABLE |
3085 | #if EV_IDLE_ENABLE |
2632 | /* make idle watchers pending. this handles the "call-idle */ |
3086 | /* make idle watchers pending. this handles the "call-idle */ |
2633 | /* only when higher priorities are idle" logic */ |
3087 | /* only when higher priorities are idle" logic */ |
… | |
… | |
2723 | { |
3177 | { |
2724 | EV_FREQUENT_CHECK; |
3178 | EV_FREQUENT_CHECK; |
2725 | |
3179 | |
2726 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3180 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2727 | { |
3181 | { |
2728 | int feed_count = 0; |
|
|
2729 | |
|
|
2730 | do |
3182 | do |
2731 | { |
3183 | { |
2732 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3184 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2733 | |
3185 | |
2734 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3186 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
2868 | |
3320 | |
2869 | mn_now = ev_rt_now; |
3321 | mn_now = ev_rt_now; |
2870 | } |
3322 | } |
2871 | } |
3323 | } |
2872 | |
3324 | |
2873 | void |
3325 | int |
2874 | ev_run (EV_P_ int flags) |
3326 | ev_run (EV_P_ int flags) |
2875 | { |
3327 | { |
2876 | #if EV_FEATURE_API |
3328 | #if EV_FEATURE_API |
2877 | ++loop_depth; |
3329 | ++loop_depth; |
2878 | #endif |
3330 | #endif |
… | |
… | |
2991 | #endif |
3443 | #endif |
2992 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
3444 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2993 | backend_poll (EV_A_ waittime); |
3445 | backend_poll (EV_A_ waittime); |
2994 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3446 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2995 | |
3447 | |
2996 | pipe_write_wanted = 0; /* just an optimsiation, no fence needed */ |
3448 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
2997 | |
3449 | |
|
|
3450 | ECB_MEMORY_FENCE_ACQUIRE; |
2998 | if (pipe_write_skipped) |
3451 | if (pipe_write_skipped) |
2999 | { |
3452 | { |
3000 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3453 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3001 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3454 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3002 | } |
3455 | } |
… | |
… | |
3035 | loop_done = EVBREAK_CANCEL; |
3488 | loop_done = EVBREAK_CANCEL; |
3036 | |
3489 | |
3037 | #if EV_FEATURE_API |
3490 | #if EV_FEATURE_API |
3038 | --loop_depth; |
3491 | --loop_depth; |
3039 | #endif |
3492 | #endif |
|
|
3493 | |
|
|
3494 | return activecnt; |
3040 | } |
3495 | } |
3041 | |
3496 | |
3042 | void |
3497 | void |
3043 | ev_break (EV_P_ int how) |
3498 | ev_break (EV_P_ int how) EV_THROW |
3044 | { |
3499 | { |
3045 | loop_done = how; |
3500 | loop_done = how; |
3046 | } |
3501 | } |
3047 | |
3502 | |
3048 | void |
3503 | void |
3049 | ev_ref (EV_P) |
3504 | ev_ref (EV_P) EV_THROW |
3050 | { |
3505 | { |
3051 | ++activecnt; |
3506 | ++activecnt; |
3052 | } |
3507 | } |
3053 | |
3508 | |
3054 | void |
3509 | void |
3055 | ev_unref (EV_P) |
3510 | ev_unref (EV_P) EV_THROW |
3056 | { |
3511 | { |
3057 | --activecnt; |
3512 | --activecnt; |
3058 | } |
3513 | } |
3059 | |
3514 | |
3060 | void |
3515 | void |
3061 | ev_now_update (EV_P) |
3516 | ev_now_update (EV_P) EV_THROW |
3062 | { |
3517 | { |
3063 | time_update (EV_A_ 1e100); |
3518 | time_update (EV_A_ 1e100); |
3064 | } |
3519 | } |
3065 | |
3520 | |
3066 | void |
3521 | void |
3067 | ev_suspend (EV_P) |
3522 | ev_suspend (EV_P) EV_THROW |
3068 | { |
3523 | { |
3069 | ev_now_update (EV_A); |
3524 | ev_now_update (EV_A); |
3070 | } |
3525 | } |
3071 | |
3526 | |
3072 | void |
3527 | void |
3073 | ev_resume (EV_P) |
3528 | ev_resume (EV_P) EV_THROW |
3074 | { |
3529 | { |
3075 | ev_tstamp mn_prev = mn_now; |
3530 | ev_tstamp mn_prev = mn_now; |
3076 | |
3531 | |
3077 | ev_now_update (EV_A); |
3532 | ev_now_update (EV_A); |
3078 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3533 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
3117 | w->pending = 0; |
3572 | w->pending = 0; |
3118 | } |
3573 | } |
3119 | } |
3574 | } |
3120 | |
3575 | |
3121 | int |
3576 | int |
3122 | ev_clear_pending (EV_P_ void *w) |
3577 | ev_clear_pending (EV_P_ void *w) EV_THROW |
3123 | { |
3578 | { |
3124 | W w_ = (W)w; |
3579 | W w_ = (W)w; |
3125 | int pending = w_->pending; |
3580 | int pending = w_->pending; |
3126 | |
3581 | |
3127 | if (expect_true (pending)) |
3582 | if (expect_true (pending)) |
… | |
… | |
3160 | } |
3615 | } |
3161 | |
3616 | |
3162 | /*****************************************************************************/ |
3617 | /*****************************************************************************/ |
3163 | |
3618 | |
3164 | void noinline |
3619 | void noinline |
3165 | ev_io_start (EV_P_ ev_io *w) |
3620 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
3166 | { |
3621 | { |
3167 | int fd = w->fd; |
3622 | int fd = w->fd; |
3168 | |
3623 | |
3169 | if (expect_false (ev_is_active (w))) |
3624 | if (expect_false (ev_is_active (w))) |
3170 | return; |
3625 | return; |
… | |
… | |
3176 | |
3631 | |
3177 | ev_start (EV_A_ (W)w, 1); |
3632 | ev_start (EV_A_ (W)w, 1); |
3178 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3633 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3179 | wlist_add (&anfds[fd].head, (WL)w); |
3634 | wlist_add (&anfds[fd].head, (WL)w); |
3180 | |
3635 | |
|
|
3636 | /* common bug, apparently */ |
|
|
3637 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
|
|
3638 | |
3181 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
3639 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
3182 | w->events &= ~EV__IOFDSET; |
3640 | w->events &= ~EV__IOFDSET; |
3183 | |
3641 | |
3184 | EV_FREQUENT_CHECK; |
3642 | EV_FREQUENT_CHECK; |
3185 | } |
3643 | } |
3186 | |
3644 | |
3187 | void noinline |
3645 | void noinline |
3188 | ev_io_stop (EV_P_ ev_io *w) |
3646 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
3189 | { |
3647 | { |
3190 | clear_pending (EV_A_ (W)w); |
3648 | clear_pending (EV_A_ (W)w); |
3191 | if (expect_false (!ev_is_active (w))) |
3649 | if (expect_false (!ev_is_active (w))) |
3192 | return; |
3650 | return; |
3193 | |
3651 | |
… | |
… | |
3202 | |
3660 | |
3203 | EV_FREQUENT_CHECK; |
3661 | EV_FREQUENT_CHECK; |
3204 | } |
3662 | } |
3205 | |
3663 | |
3206 | void noinline |
3664 | void noinline |
3207 | ev_timer_start (EV_P_ ev_timer *w) |
3665 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
3208 | { |
3666 | { |
3209 | if (expect_false (ev_is_active (w))) |
3667 | if (expect_false (ev_is_active (w))) |
3210 | return; |
3668 | return; |
3211 | |
3669 | |
3212 | ev_at (w) += mn_now; |
3670 | ev_at (w) += mn_now; |
… | |
… | |
3226 | |
3684 | |
3227 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3685 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3228 | } |
3686 | } |
3229 | |
3687 | |
3230 | void noinline |
3688 | void noinline |
3231 | ev_timer_stop (EV_P_ ev_timer *w) |
3689 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
3232 | { |
3690 | { |
3233 | clear_pending (EV_A_ (W)w); |
3691 | clear_pending (EV_A_ (W)w); |
3234 | if (expect_false (!ev_is_active (w))) |
3692 | if (expect_false (!ev_is_active (w))) |
3235 | return; |
3693 | return; |
3236 | |
3694 | |
… | |
… | |
3256 | |
3714 | |
3257 | EV_FREQUENT_CHECK; |
3715 | EV_FREQUENT_CHECK; |
3258 | } |
3716 | } |
3259 | |
3717 | |
3260 | void noinline |
3718 | void noinline |
3261 | ev_timer_again (EV_P_ ev_timer *w) |
3719 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
3262 | { |
3720 | { |
3263 | EV_FREQUENT_CHECK; |
3721 | EV_FREQUENT_CHECK; |
|
|
3722 | |
|
|
3723 | clear_pending (EV_A_ (W)w); |
3264 | |
3724 | |
3265 | if (ev_is_active (w)) |
3725 | if (ev_is_active (w)) |
3266 | { |
3726 | { |
3267 | if (w->repeat) |
3727 | if (w->repeat) |
3268 | { |
3728 | { |
… | |
… | |
3281 | |
3741 | |
3282 | EV_FREQUENT_CHECK; |
3742 | EV_FREQUENT_CHECK; |
3283 | } |
3743 | } |
3284 | |
3744 | |
3285 | ev_tstamp |
3745 | ev_tstamp |
3286 | ev_timer_remaining (EV_P_ ev_timer *w) |
3746 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
3287 | { |
3747 | { |
3288 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3748 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3289 | } |
3749 | } |
3290 | |
3750 | |
3291 | #if EV_PERIODIC_ENABLE |
3751 | #if EV_PERIODIC_ENABLE |
3292 | void noinline |
3752 | void noinline |
3293 | ev_periodic_start (EV_P_ ev_periodic *w) |
3753 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
3294 | { |
3754 | { |
3295 | if (expect_false (ev_is_active (w))) |
3755 | if (expect_false (ev_is_active (w))) |
3296 | return; |
3756 | return; |
3297 | |
3757 | |
3298 | if (w->reschedule_cb) |
3758 | if (w->reschedule_cb) |
… | |
… | |
3318 | |
3778 | |
3319 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3779 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3320 | } |
3780 | } |
3321 | |
3781 | |
3322 | void noinline |
3782 | void noinline |
3323 | ev_periodic_stop (EV_P_ ev_periodic *w) |
3783 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
3324 | { |
3784 | { |
3325 | clear_pending (EV_A_ (W)w); |
3785 | clear_pending (EV_A_ (W)w); |
3326 | if (expect_false (!ev_is_active (w))) |
3786 | if (expect_false (!ev_is_active (w))) |
3327 | return; |
3787 | return; |
3328 | |
3788 | |
… | |
… | |
3346 | |
3806 | |
3347 | EV_FREQUENT_CHECK; |
3807 | EV_FREQUENT_CHECK; |
3348 | } |
3808 | } |
3349 | |
3809 | |
3350 | void noinline |
3810 | void noinline |
3351 | ev_periodic_again (EV_P_ ev_periodic *w) |
3811 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
3352 | { |
3812 | { |
3353 | /* TODO: use adjustheap and recalculation */ |
3813 | /* TODO: use adjustheap and recalculation */ |
3354 | ev_periodic_stop (EV_A_ w); |
3814 | ev_periodic_stop (EV_A_ w); |
3355 | ev_periodic_start (EV_A_ w); |
3815 | ev_periodic_start (EV_A_ w); |
3356 | } |
3816 | } |
… | |
… | |
3361 | #endif |
3821 | #endif |
3362 | |
3822 | |
3363 | #if EV_SIGNAL_ENABLE |
3823 | #if EV_SIGNAL_ENABLE |
3364 | |
3824 | |
3365 | void noinline |
3825 | void noinline |
3366 | ev_signal_start (EV_P_ ev_signal *w) |
3826 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
3367 | { |
3827 | { |
3368 | if (expect_false (ev_is_active (w))) |
3828 | if (expect_false (ev_is_active (w))) |
3369 | return; |
3829 | return; |
3370 | |
3830 | |
3371 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
3831 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
… | |
… | |
3373 | #if EV_MULTIPLICITY |
3833 | #if EV_MULTIPLICITY |
3374 | assert (("libev: a signal must not be attached to two different loops", |
3834 | assert (("libev: a signal must not be attached to two different loops", |
3375 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3835 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3376 | |
3836 | |
3377 | signals [w->signum - 1].loop = EV_A; |
3837 | signals [w->signum - 1].loop = EV_A; |
|
|
3838 | ECB_MEMORY_FENCE_RELEASE; |
3378 | #endif |
3839 | #endif |
3379 | |
3840 | |
3380 | EV_FREQUENT_CHECK; |
3841 | EV_FREQUENT_CHECK; |
3381 | |
3842 | |
3382 | #if EV_USE_SIGNALFD |
3843 | #if EV_USE_SIGNALFD |
… | |
… | |
3442 | |
3903 | |
3443 | EV_FREQUENT_CHECK; |
3904 | EV_FREQUENT_CHECK; |
3444 | } |
3905 | } |
3445 | |
3906 | |
3446 | void noinline |
3907 | void noinline |
3447 | ev_signal_stop (EV_P_ ev_signal *w) |
3908 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
3448 | { |
3909 | { |
3449 | clear_pending (EV_A_ (W)w); |
3910 | clear_pending (EV_A_ (W)w); |
3450 | if (expect_false (!ev_is_active (w))) |
3911 | if (expect_false (!ev_is_active (w))) |
3451 | return; |
3912 | return; |
3452 | |
3913 | |
… | |
… | |
3483 | #endif |
3944 | #endif |
3484 | |
3945 | |
3485 | #if EV_CHILD_ENABLE |
3946 | #if EV_CHILD_ENABLE |
3486 | |
3947 | |
3487 | void |
3948 | void |
3488 | ev_child_start (EV_P_ ev_child *w) |
3949 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
3489 | { |
3950 | { |
3490 | #if EV_MULTIPLICITY |
3951 | #if EV_MULTIPLICITY |
3491 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3952 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3492 | #endif |
3953 | #endif |
3493 | if (expect_false (ev_is_active (w))) |
3954 | if (expect_false (ev_is_active (w))) |
… | |
… | |
3500 | |
3961 | |
3501 | EV_FREQUENT_CHECK; |
3962 | EV_FREQUENT_CHECK; |
3502 | } |
3963 | } |
3503 | |
3964 | |
3504 | void |
3965 | void |
3505 | ev_child_stop (EV_P_ ev_child *w) |
3966 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
3506 | { |
3967 | { |
3507 | clear_pending (EV_A_ (W)w); |
3968 | clear_pending (EV_A_ (W)w); |
3508 | if (expect_false (!ev_is_active (w))) |
3969 | if (expect_false (!ev_is_active (w))) |
3509 | return; |
3970 | return; |
3510 | |
3971 | |
… | |
… | |
3537 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3998 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3538 | |
3999 | |
3539 | static void noinline |
4000 | static void noinline |
3540 | infy_add (EV_P_ ev_stat *w) |
4001 | infy_add (EV_P_ ev_stat *w) |
3541 | { |
4002 | { |
3542 | 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); |
4003 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
4004 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
4005 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
4006 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
3543 | |
4007 | |
3544 | if (w->wd >= 0) |
4008 | if (w->wd >= 0) |
3545 | { |
4009 | { |
3546 | struct statfs sfs; |
4010 | struct statfs sfs; |
3547 | |
4011 | |
… | |
… | |
3551 | |
4015 | |
3552 | if (!fs_2625) |
4016 | if (!fs_2625) |
3553 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
4017 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3554 | else if (!statfs (w->path, &sfs) |
4018 | else if (!statfs (w->path, &sfs) |
3555 | && (sfs.f_type == 0x1373 /* devfs */ |
4019 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
4020 | || sfs.f_type == 0x4006 /* fat */ |
|
|
4021 | || sfs.f_type == 0x4d44 /* msdos */ |
3556 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
4022 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
4023 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
4024 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
4025 | || sfs.f_type == 0x5346544e /* ntfs */ |
3557 | || sfs.f_type == 0x3153464a /* jfs */ |
4026 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
4027 | || sfs.f_type == 0x9123683e /* btrfs */ |
3558 | || sfs.f_type == 0x52654973 /* reiser3 */ |
4028 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3559 | || sfs.f_type == 0x01021994 /* tempfs */ |
4029 | || sfs.f_type == 0x01021994 /* tmpfs */ |
3560 | || sfs.f_type == 0x58465342 /* xfs */)) |
4030 | || sfs.f_type == 0x58465342 /* xfs */)) |
3561 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
4031 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3562 | else |
4032 | else |
3563 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
4033 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
3564 | } |
4034 | } |
… | |
… | |
3677 | } |
4147 | } |
3678 | |
4148 | |
3679 | inline_size int |
4149 | inline_size int |
3680 | infy_newfd (void) |
4150 | infy_newfd (void) |
3681 | { |
4151 | { |
3682 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
4152 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
3683 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
4153 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3684 | if (fd >= 0) |
4154 | if (fd >= 0) |
3685 | return fd; |
4155 | return fd; |
3686 | #endif |
4156 | #endif |
3687 | return inotify_init (); |
4157 | return inotify_init (); |
… | |
… | |
3762 | #else |
4232 | #else |
3763 | # define EV_LSTAT(p,b) lstat (p, b) |
4233 | # define EV_LSTAT(p,b) lstat (p, b) |
3764 | #endif |
4234 | #endif |
3765 | |
4235 | |
3766 | void |
4236 | void |
3767 | ev_stat_stat (EV_P_ ev_stat *w) |
4237 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
3768 | { |
4238 | { |
3769 | if (lstat (w->path, &w->attr) < 0) |
4239 | if (lstat (w->path, &w->attr) < 0) |
3770 | w->attr.st_nlink = 0; |
4240 | w->attr.st_nlink = 0; |
3771 | else if (!w->attr.st_nlink) |
4241 | else if (!w->attr.st_nlink) |
3772 | w->attr.st_nlink = 1; |
4242 | w->attr.st_nlink = 1; |
… | |
… | |
3811 | ev_feed_event (EV_A_ w, EV_STAT); |
4281 | ev_feed_event (EV_A_ w, EV_STAT); |
3812 | } |
4282 | } |
3813 | } |
4283 | } |
3814 | |
4284 | |
3815 | void |
4285 | void |
3816 | ev_stat_start (EV_P_ ev_stat *w) |
4286 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
3817 | { |
4287 | { |
3818 | if (expect_false (ev_is_active (w))) |
4288 | if (expect_false (ev_is_active (w))) |
3819 | return; |
4289 | return; |
3820 | |
4290 | |
3821 | ev_stat_stat (EV_A_ w); |
4291 | ev_stat_stat (EV_A_ w); |
… | |
… | |
3842 | |
4312 | |
3843 | EV_FREQUENT_CHECK; |
4313 | EV_FREQUENT_CHECK; |
3844 | } |
4314 | } |
3845 | |
4315 | |
3846 | void |
4316 | void |
3847 | ev_stat_stop (EV_P_ ev_stat *w) |
4317 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
3848 | { |
4318 | { |
3849 | clear_pending (EV_A_ (W)w); |
4319 | clear_pending (EV_A_ (W)w); |
3850 | if (expect_false (!ev_is_active (w))) |
4320 | if (expect_false (!ev_is_active (w))) |
3851 | return; |
4321 | return; |
3852 | |
4322 | |
… | |
… | |
3868 | } |
4338 | } |
3869 | #endif |
4339 | #endif |
3870 | |
4340 | |
3871 | #if EV_IDLE_ENABLE |
4341 | #if EV_IDLE_ENABLE |
3872 | void |
4342 | void |
3873 | ev_idle_start (EV_P_ ev_idle *w) |
4343 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
3874 | { |
4344 | { |
3875 | if (expect_false (ev_is_active (w))) |
4345 | if (expect_false (ev_is_active (w))) |
3876 | return; |
4346 | return; |
3877 | |
4347 | |
3878 | pri_adjust (EV_A_ (W)w); |
4348 | pri_adjust (EV_A_ (W)w); |
… | |
… | |
3891 | |
4361 | |
3892 | EV_FREQUENT_CHECK; |
4362 | EV_FREQUENT_CHECK; |
3893 | } |
4363 | } |
3894 | |
4364 | |
3895 | void |
4365 | void |
3896 | ev_idle_stop (EV_P_ ev_idle *w) |
4366 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
3897 | { |
4367 | { |
3898 | clear_pending (EV_A_ (W)w); |
4368 | clear_pending (EV_A_ (W)w); |
3899 | if (expect_false (!ev_is_active (w))) |
4369 | if (expect_false (!ev_is_active (w))) |
3900 | return; |
4370 | return; |
3901 | |
4371 | |
… | |
… | |
3915 | } |
4385 | } |
3916 | #endif |
4386 | #endif |
3917 | |
4387 | |
3918 | #if EV_PREPARE_ENABLE |
4388 | #if EV_PREPARE_ENABLE |
3919 | void |
4389 | void |
3920 | ev_prepare_start (EV_P_ ev_prepare *w) |
4390 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
3921 | { |
4391 | { |
3922 | if (expect_false (ev_is_active (w))) |
4392 | if (expect_false (ev_is_active (w))) |
3923 | return; |
4393 | return; |
3924 | |
4394 | |
3925 | EV_FREQUENT_CHECK; |
4395 | EV_FREQUENT_CHECK; |
… | |
… | |
3930 | |
4400 | |
3931 | EV_FREQUENT_CHECK; |
4401 | EV_FREQUENT_CHECK; |
3932 | } |
4402 | } |
3933 | |
4403 | |
3934 | void |
4404 | void |
3935 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4405 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
3936 | { |
4406 | { |
3937 | clear_pending (EV_A_ (W)w); |
4407 | clear_pending (EV_A_ (W)w); |
3938 | if (expect_false (!ev_is_active (w))) |
4408 | if (expect_false (!ev_is_active (w))) |
3939 | return; |
4409 | return; |
3940 | |
4410 | |
… | |
… | |
3953 | } |
4423 | } |
3954 | #endif |
4424 | #endif |
3955 | |
4425 | |
3956 | #if EV_CHECK_ENABLE |
4426 | #if EV_CHECK_ENABLE |
3957 | void |
4427 | void |
3958 | ev_check_start (EV_P_ ev_check *w) |
4428 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
3959 | { |
4429 | { |
3960 | if (expect_false (ev_is_active (w))) |
4430 | if (expect_false (ev_is_active (w))) |
3961 | return; |
4431 | return; |
3962 | |
4432 | |
3963 | EV_FREQUENT_CHECK; |
4433 | EV_FREQUENT_CHECK; |
… | |
… | |
3968 | |
4438 | |
3969 | EV_FREQUENT_CHECK; |
4439 | EV_FREQUENT_CHECK; |
3970 | } |
4440 | } |
3971 | |
4441 | |
3972 | void |
4442 | void |
3973 | ev_check_stop (EV_P_ ev_check *w) |
4443 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
3974 | { |
4444 | { |
3975 | clear_pending (EV_A_ (W)w); |
4445 | clear_pending (EV_A_ (W)w); |
3976 | if (expect_false (!ev_is_active (w))) |
4446 | if (expect_false (!ev_is_active (w))) |
3977 | return; |
4447 | return; |
3978 | |
4448 | |
… | |
… | |
3991 | } |
4461 | } |
3992 | #endif |
4462 | #endif |
3993 | |
4463 | |
3994 | #if EV_EMBED_ENABLE |
4464 | #if EV_EMBED_ENABLE |
3995 | void noinline |
4465 | void noinline |
3996 | ev_embed_sweep (EV_P_ ev_embed *w) |
4466 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
3997 | { |
4467 | { |
3998 | ev_run (w->other, EVRUN_NOWAIT); |
4468 | ev_run (w->other, EVRUN_NOWAIT); |
3999 | } |
4469 | } |
4000 | |
4470 | |
4001 | static void |
4471 | static void |
… | |
… | |
4049 | ev_idle_stop (EV_A_ idle); |
4519 | ev_idle_stop (EV_A_ idle); |
4050 | } |
4520 | } |
4051 | #endif |
4521 | #endif |
4052 | |
4522 | |
4053 | void |
4523 | void |
4054 | ev_embed_start (EV_P_ ev_embed *w) |
4524 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
4055 | { |
4525 | { |
4056 | if (expect_false (ev_is_active (w))) |
4526 | if (expect_false (ev_is_active (w))) |
4057 | return; |
4527 | return; |
4058 | |
4528 | |
4059 | { |
4529 | { |
… | |
… | |
4080 | |
4550 | |
4081 | EV_FREQUENT_CHECK; |
4551 | EV_FREQUENT_CHECK; |
4082 | } |
4552 | } |
4083 | |
4553 | |
4084 | void |
4554 | void |
4085 | ev_embed_stop (EV_P_ ev_embed *w) |
4555 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
4086 | { |
4556 | { |
4087 | clear_pending (EV_A_ (W)w); |
4557 | clear_pending (EV_A_ (W)w); |
4088 | if (expect_false (!ev_is_active (w))) |
4558 | if (expect_false (!ev_is_active (w))) |
4089 | return; |
4559 | return; |
4090 | |
4560 | |
… | |
… | |
4100 | } |
4570 | } |
4101 | #endif |
4571 | #endif |
4102 | |
4572 | |
4103 | #if EV_FORK_ENABLE |
4573 | #if EV_FORK_ENABLE |
4104 | void |
4574 | void |
4105 | ev_fork_start (EV_P_ ev_fork *w) |
4575 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
4106 | { |
4576 | { |
4107 | if (expect_false (ev_is_active (w))) |
4577 | if (expect_false (ev_is_active (w))) |
4108 | return; |
4578 | return; |
4109 | |
4579 | |
4110 | EV_FREQUENT_CHECK; |
4580 | EV_FREQUENT_CHECK; |
… | |
… | |
4115 | |
4585 | |
4116 | EV_FREQUENT_CHECK; |
4586 | EV_FREQUENT_CHECK; |
4117 | } |
4587 | } |
4118 | |
4588 | |
4119 | void |
4589 | void |
4120 | ev_fork_stop (EV_P_ ev_fork *w) |
4590 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
4121 | { |
4591 | { |
4122 | clear_pending (EV_A_ (W)w); |
4592 | clear_pending (EV_A_ (W)w); |
4123 | if (expect_false (!ev_is_active (w))) |
4593 | if (expect_false (!ev_is_active (w))) |
4124 | return; |
4594 | return; |
4125 | |
4595 | |
… | |
… | |
4138 | } |
4608 | } |
4139 | #endif |
4609 | #endif |
4140 | |
4610 | |
4141 | #if EV_CLEANUP_ENABLE |
4611 | #if EV_CLEANUP_ENABLE |
4142 | void |
4612 | void |
4143 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
4613 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
4144 | { |
4614 | { |
4145 | if (expect_false (ev_is_active (w))) |
4615 | if (expect_false (ev_is_active (w))) |
4146 | return; |
4616 | return; |
4147 | |
4617 | |
4148 | EV_FREQUENT_CHECK; |
4618 | EV_FREQUENT_CHECK; |
… | |
… | |
4155 | ev_unref (EV_A); |
4625 | ev_unref (EV_A); |
4156 | EV_FREQUENT_CHECK; |
4626 | EV_FREQUENT_CHECK; |
4157 | } |
4627 | } |
4158 | |
4628 | |
4159 | void |
4629 | void |
4160 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
4630 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
4161 | { |
4631 | { |
4162 | clear_pending (EV_A_ (W)w); |
4632 | clear_pending (EV_A_ (W)w); |
4163 | if (expect_false (!ev_is_active (w))) |
4633 | if (expect_false (!ev_is_active (w))) |
4164 | return; |
4634 | return; |
4165 | |
4635 | |
… | |
… | |
4179 | } |
4649 | } |
4180 | #endif |
4650 | #endif |
4181 | |
4651 | |
4182 | #if EV_ASYNC_ENABLE |
4652 | #if EV_ASYNC_ENABLE |
4183 | void |
4653 | void |
4184 | ev_async_start (EV_P_ ev_async *w) |
4654 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
4185 | { |
4655 | { |
4186 | if (expect_false (ev_is_active (w))) |
4656 | if (expect_false (ev_is_active (w))) |
4187 | return; |
4657 | return; |
4188 | |
4658 | |
4189 | w->sent = 0; |
4659 | w->sent = 0; |
… | |
… | |
4198 | |
4668 | |
4199 | EV_FREQUENT_CHECK; |
4669 | EV_FREQUENT_CHECK; |
4200 | } |
4670 | } |
4201 | |
4671 | |
4202 | void |
4672 | void |
4203 | ev_async_stop (EV_P_ ev_async *w) |
4673 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
4204 | { |
4674 | { |
4205 | clear_pending (EV_A_ (W)w); |
4675 | clear_pending (EV_A_ (W)w); |
4206 | if (expect_false (!ev_is_active (w))) |
4676 | if (expect_false (!ev_is_active (w))) |
4207 | return; |
4677 | return; |
4208 | |
4678 | |
… | |
… | |
4219 | |
4689 | |
4220 | EV_FREQUENT_CHECK; |
4690 | EV_FREQUENT_CHECK; |
4221 | } |
4691 | } |
4222 | |
4692 | |
4223 | void |
4693 | void |
4224 | ev_async_send (EV_P_ ev_async *w) |
4694 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
4225 | { |
4695 | { |
4226 | w->sent = 1; |
4696 | w->sent = 1; |
4227 | evpipe_write (EV_A_ &async_pending); |
4697 | evpipe_write (EV_A_ &async_pending); |
4228 | } |
4698 | } |
4229 | #endif |
4699 | #endif |
… | |
… | |
4266 | |
4736 | |
4267 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4737 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4268 | } |
4738 | } |
4269 | |
4739 | |
4270 | void |
4740 | void |
4271 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
4741 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
4272 | { |
4742 | { |
4273 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4743 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4274 | |
4744 | |
4275 | if (expect_false (!once)) |
4745 | if (expect_false (!once)) |
4276 | { |
4746 | { |
… | |
… | |
4298 | |
4768 | |
4299 | /*****************************************************************************/ |
4769 | /*****************************************************************************/ |
4300 | |
4770 | |
4301 | #if EV_WALK_ENABLE |
4771 | #if EV_WALK_ENABLE |
4302 | void ecb_cold |
4772 | void ecb_cold |
4303 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
4773 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
4304 | { |
4774 | { |
4305 | int i, j; |
4775 | int i, j; |
4306 | ev_watcher_list *wl, *wn; |
4776 | ev_watcher_list *wl, *wn; |
4307 | |
4777 | |
4308 | if (types & (EV_IO | EV_EMBED)) |
4778 | if (types & (EV_IO | EV_EMBED)) |