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 | * |
… | |
… | |
43 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
44 | # else |
44 | # else |
45 | # include "config.h" |
45 | # include "config.h" |
46 | # endif |
46 | # endif |
47 | |
47 | |
48 | #if HAVE_FLOOR |
48 | # if HAVE_FLOOR |
49 | # ifndef EV_USE_FLOOR |
49 | # ifndef EV_USE_FLOOR |
50 | # define EV_USE_FLOOR 1 |
50 | # define EV_USE_FLOOR 1 |
|
|
51 | # endif |
51 | # endif |
52 | # endif |
52 | #endif |
|
|
53 | |
53 | |
54 | # if HAVE_CLOCK_SYSCALL |
54 | # if HAVE_CLOCK_SYSCALL |
55 | # ifndef EV_USE_CLOCK_SYSCALL |
55 | # ifndef EV_USE_CLOCK_SYSCALL |
56 | # define EV_USE_CLOCK_SYSCALL 1 |
56 | # define EV_USE_CLOCK_SYSCALL 1 |
57 | # ifndef EV_USE_REALTIME |
57 | # ifndef EV_USE_REALTIME |
… | |
… | |
59 | # endif |
59 | # endif |
60 | # ifndef EV_USE_MONOTONIC |
60 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 1 |
61 | # define EV_USE_MONOTONIC 1 |
62 | # endif |
62 | # endif |
63 | # endif |
63 | # endif |
64 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
64 | # elif !defined EV_USE_CLOCK_SYSCALL |
65 | # define EV_USE_CLOCK_SYSCALL 0 |
65 | # define EV_USE_CLOCK_SYSCALL 0 |
66 | # endif |
66 | # endif |
67 | |
67 | |
68 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
69 | # ifndef EV_USE_MONOTONIC |
69 | # ifndef EV_USE_MONOTONIC |
… | |
… | |
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 | EV_CPP(extern "C" {) |
188 | #if EV_NO_THREADS |
|
|
189 | # undef EV_NO_SMP |
|
|
190 | # define EV_NO_SMP 1 |
|
|
191 | # undef ECB_NO_THREADS |
|
|
192 | # define ECB_NO_THREADS 1 |
|
|
193 | #endif |
|
|
194 | #if EV_NO_SMP |
|
|
195 | # undef EV_NO_SMP |
|
|
196 | # define ECB_NO_SMP 1 |
|
|
197 | #endif |
189 | |
198 | |
190 | #ifndef _WIN32 |
199 | #ifndef _WIN32 |
191 | # include <sys/time.h> |
200 | # include <sys/time.h> |
192 | # include <sys/wait.h> |
201 | # include <sys/wait.h> |
193 | # include <unistd.h> |
202 | # include <unistd.h> |
194 | #else |
203 | #else |
195 | # include <io.h> |
204 | # include <io.h> |
196 | # define WIN32_LEAN_AND_MEAN |
205 | # define WIN32_LEAN_AND_MEAN |
|
|
206 | # include <winsock2.h> |
197 | # include <windows.h> |
207 | # include <windows.h> |
198 | # ifndef EV_SELECT_IS_WINSOCKET |
208 | # ifndef EV_SELECT_IS_WINSOCKET |
199 | # define EV_SELECT_IS_WINSOCKET 1 |
209 | # define EV_SELECT_IS_WINSOCKET 1 |
200 | # endif |
210 | # endif |
201 | # undef EV_AVOID_STDIO |
211 | # undef EV_AVOID_STDIO |
… | |
… | |
210 | #define _DARWIN_UNLIMITED_SELECT 1 |
220 | #define _DARWIN_UNLIMITED_SELECT 1 |
211 | |
221 | |
212 | /* 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 */ |
213 | |
223 | |
214 | /* try to deduce the maximum number of signals on this platform */ |
224 | /* try to deduce the maximum number of signals on this platform */ |
215 | #if defined (EV_NSIG) |
225 | #if defined EV_NSIG |
216 | /* use what's provided */ |
226 | /* use what's provided */ |
217 | #elif defined (NSIG) |
227 | #elif defined NSIG |
218 | # define EV_NSIG (NSIG) |
228 | # define EV_NSIG (NSIG) |
219 | #elif defined(_NSIG) |
229 | #elif defined _NSIG |
220 | # define EV_NSIG (_NSIG) |
230 | # define EV_NSIG (_NSIG) |
221 | #elif defined (SIGMAX) |
231 | #elif defined SIGMAX |
222 | # define EV_NSIG (SIGMAX+1) |
232 | # define EV_NSIG (SIGMAX+1) |
223 | #elif defined (SIG_MAX) |
233 | #elif defined SIG_MAX |
224 | # define EV_NSIG (SIG_MAX+1) |
234 | # define EV_NSIG (SIG_MAX+1) |
225 | #elif defined (_SIG_MAX) |
235 | #elif defined _SIG_MAX |
226 | # define EV_NSIG (_SIG_MAX+1) |
236 | # define EV_NSIG (_SIG_MAX+1) |
227 | #elif defined (MAXSIG) |
237 | #elif defined MAXSIG |
228 | # define EV_NSIG (MAXSIG+1) |
238 | # define EV_NSIG (MAXSIG+1) |
229 | #elif defined (MAX_SIG) |
239 | #elif defined MAX_SIG |
230 | # define EV_NSIG (MAX_SIG+1) |
240 | # define EV_NSIG (MAX_SIG+1) |
231 | #elif defined (SIGARRAYSIZE) |
241 | #elif defined SIGARRAYSIZE |
232 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
233 | #elif defined (_sys_nsig) |
243 | #elif defined _sys_nsig |
234 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
235 | #else |
245 | #else |
236 | # error "unable to find value for NSIG, please report" |
246 | # define EV_NSIG (8 * sizeof (sigset_t) + 1) |
237 | /* to make it compile regardless, just remove the above line, */ |
|
|
238 | /* but consider reporting it, too! :) */ |
|
|
239 | # define EV_NSIG 65 |
|
|
240 | #endif |
247 | #endif |
241 | |
248 | |
242 | #ifndef EV_USE_FLOOR |
249 | #ifndef EV_USE_FLOOR |
243 | # define EV_USE_FLOOR 0 |
250 | # define EV_USE_FLOOR 0 |
244 | #endif |
251 | #endif |
245 | |
252 | |
246 | #ifndef EV_USE_CLOCK_SYSCALL |
253 | #ifndef EV_USE_CLOCK_SYSCALL |
247 | # if __linux && __GLIBC__ >= 2 |
254 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
248 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
255 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
249 | # else |
256 | # else |
250 | # define EV_USE_CLOCK_SYSCALL 0 |
257 | # define EV_USE_CLOCK_SYSCALL 0 |
251 | # endif |
258 | # endif |
252 | #endif |
259 | #endif |
253 | |
260 | |
254 | #ifndef EV_USE_MONOTONIC |
261 | #ifndef EV_USE_MONOTONIC |
255 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
262 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
256 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
263 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
257 | # else |
264 | # else |
258 | # define EV_USE_MONOTONIC 0 |
265 | # define EV_USE_MONOTONIC 0 |
259 | # endif |
266 | # endif |
260 | #endif |
267 | #endif |
… | |
… | |
347 | |
354 | |
348 | #ifndef EV_HEAP_CACHE_AT |
355 | #ifndef EV_HEAP_CACHE_AT |
349 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
356 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
350 | #endif |
357 | #endif |
351 | |
358 | |
|
|
359 | #ifdef ANDROID |
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|
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 |
|
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365 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
366 | #endif |
|
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367 | |
|
|
368 | /* aix's poll.h seems to cause lots of trouble */ |
|
|
369 | #ifdef _AIX |
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|
370 | /* AIX has a completely broken poll.h header */ |
|
|
371 | # undef EV_USE_POLL |
|
|
372 | # define EV_USE_POLL 0 |
|
|
373 | #endif |
|
|
374 | |
352 | /* 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, */ |
353 | /* which makes programs even slower. might work on other unices, too. */ |
376 | /* which makes programs even slower. might work on other unices, too. */ |
354 | #if EV_USE_CLOCK_SYSCALL |
377 | #if EV_USE_CLOCK_SYSCALL |
355 | # include <syscall.h> |
378 | # include <sys/syscall.h> |
356 | # ifdef SYS_clock_gettime |
379 | # ifdef SYS_clock_gettime |
357 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
380 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
358 | # undef EV_USE_MONOTONIC |
381 | # undef EV_USE_MONOTONIC |
359 | # define EV_USE_MONOTONIC 1 |
382 | # define EV_USE_MONOTONIC 1 |
360 | # else |
383 | # else |
… | |
… | |
363 | # endif |
386 | # endif |
364 | #endif |
387 | #endif |
365 | |
388 | |
366 | /* 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 */ |
367 | |
390 | |
368 | #ifdef _AIX |
|
|
369 | /* AIX has a completely broken poll.h header */ |
|
|
370 | # undef EV_USE_POLL |
|
|
371 | # define EV_USE_POLL 0 |
|
|
372 | #endif |
|
|
373 | |
|
|
374 | #ifndef CLOCK_MONOTONIC |
391 | #ifndef CLOCK_MONOTONIC |
375 | # undef EV_USE_MONOTONIC |
392 | # undef EV_USE_MONOTONIC |
376 | # define EV_USE_MONOTONIC 0 |
393 | # define EV_USE_MONOTONIC 0 |
377 | #endif |
394 | #endif |
378 | |
395 | |
… | |
… | |
386 | # define EV_USE_INOTIFY 0 |
403 | # define EV_USE_INOTIFY 0 |
387 | #endif |
404 | #endif |
388 | |
405 | |
389 | #if !EV_USE_NANOSLEEP |
406 | #if !EV_USE_NANOSLEEP |
390 | /* 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 */ |
391 | # if !defined(_WIN32) && !defined(__hpux) |
408 | # if !defined _WIN32 && !defined __hpux |
392 | # include <sys/select.h> |
409 | # include <sys/select.h> |
393 | # endif |
410 | # endif |
394 | #endif |
411 | #endif |
395 | |
412 | |
396 | #if EV_USE_INOTIFY |
413 | #if EV_USE_INOTIFY |
… | |
… | |
399 | /* 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 */ |
400 | # ifndef IN_DONT_FOLLOW |
417 | # ifndef IN_DONT_FOLLOW |
401 | # undef EV_USE_INOTIFY |
418 | # undef EV_USE_INOTIFY |
402 | # define EV_USE_INOTIFY 0 |
419 | # define EV_USE_INOTIFY 0 |
403 | # endif |
420 | # endif |
404 | #endif |
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405 | |
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|
406 | #if EV_SELECT_IS_WINSOCKET |
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|
407 | # include <winsock.h> |
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|
408 | #endif |
421 | #endif |
409 | |
422 | |
410 | #if EV_USE_EVENTFD |
423 | #if EV_USE_EVENTFD |
411 | /* 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 */ |
412 | # include <stdint.h> |
425 | # include <stdint.h> |
… | |
… | |
469 | /* 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 */ |
470 | /* ECB.H BEGIN */ |
483 | /* ECB.H BEGIN */ |
471 | /* |
484 | /* |
472 | * libecb - http://software.schmorp.de/pkg/libecb |
485 | * libecb - http://software.schmorp.de/pkg/libecb |
473 | * |
486 | * |
474 | * Copyright (©) 2009-2011 Marc Alexander Lehmann <libecb@schmorp.de> |
487 | * Copyright (©) 2009-2014 Marc Alexander Lehmann <libecb@schmorp.de> |
475 | * Copyright (©) 2011 Emanuele Giaquinta |
488 | * Copyright (©) 2011 Emanuele Giaquinta |
476 | * All rights reserved. |
489 | * All rights reserved. |
477 | * |
490 | * |
478 | * 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- |
479 | * tion, are permitted provided that the following conditions are met: |
492 | * tion, are permitted provided that the following conditions are met: |
… | |
… | |
493 | * 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; |
494 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
507 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
495 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
508 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
496 | * 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 |
497 | * 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. |
498 | */ |
522 | */ |
499 | |
523 | |
500 | #ifndef ECB_H |
524 | #ifndef ECB_H |
501 | #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 |
502 | |
529 | |
503 | #ifdef _WIN32 |
530 | #ifdef _WIN32 |
504 | typedef signed char int8_t; |
531 | typedef signed char int8_t; |
505 | typedef unsigned char uint8_t; |
532 | typedef unsigned char uint8_t; |
506 | typedef signed short int16_t; |
533 | typedef signed short int16_t; |
… | |
… | |
512 | typedef unsigned long long uint64_t; |
539 | typedef unsigned long long uint64_t; |
513 | #else /* _MSC_VER || __BORLANDC__ */ |
540 | #else /* _MSC_VER || __BORLANDC__ */ |
514 | typedef signed __int64 int64_t; |
541 | typedef signed __int64 int64_t; |
515 | typedef unsigned __int64 uint64_t; |
542 | typedef unsigned __int64 uint64_t; |
516 | #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 |
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550 | typedef uint32_t uintptr_t; |
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551 | typedef int32_t intptr_t; |
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552 | #endif |
517 | #else |
553 | #else |
518 | #include <inttypes.h> |
554 | #include <inttypes.h> |
|
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555 | #if UINTMAX_MAX > 0xffffffffU |
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556 | #define ECB_PTRSIZE 8 |
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557 | #else |
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558 | #define ECB_PTRSIZE 4 |
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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 |
519 | #endif |
569 | #endif |
520 | |
570 | |
521 | /* many compilers define _GNUC_ to some versions but then only implement |
571 | /* many compilers define _GNUC_ to some versions but then only implement |
522 | * what their idiot authors think are the "more important" extensions, |
572 | * what their idiot authors think are the "more important" extensions, |
523 | * causing enormous grief in return for some better fake benchmark numbers. |
573 | * causing enormous grief in return for some better fake benchmark numbers. |
524 | * or so. |
574 | * or so. |
525 | * 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 |
526 | * 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. |
527 | */ |
577 | */ |
528 | #ifndef ECB_GCC_VERSION |
578 | #ifndef ECB_GCC_VERSION |
529 | #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__ |
530 | #define ECB_GCC_VERSION(major,minor) 0 |
580 | #define ECB_GCC_VERSION(major,minor) 0 |
531 | #else |
581 | #else |
532 | #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))) |
533 | #endif |
583 | #endif |
534 | #endif |
584 | #endif |
535 | |
585 | |
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586 | #define ECB_CPP (__cplusplus+0) |
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587 | #define ECB_CPP11 (__cplusplus >= 201103L) |
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588 | |
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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 | |
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600 | #if ECB_CPP |
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601 | #define ECB_EXTERN_C extern "C" |
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|
602 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
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603 | #define ECB_EXTERN_C_END } |
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|
604 | #else |
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605 | #define ECB_EXTERN_C extern |
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606 | #define ECB_EXTERN_C_BEG |
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|
607 | #define ECB_EXTERN_C_END |
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608 | #endif |
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609 | |
536 | /*****************************************************************************/ |
610 | /*****************************************************************************/ |
537 | |
611 | |
538 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
612 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
539 | /* 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 */ |
540 | |
614 | |
541 | #if ECB_NO_THREADS || ECB_NO_SMP |
615 | #if ECB_NO_THREADS |
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|
616 | #define ECB_NO_SMP 1 |
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|
617 | #endif |
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618 | |
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619 | #if ECB_NO_SMP |
542 | #define ECB_MEMORY_FENCE do { } while (0) |
620 | #define ECB_MEMORY_FENCE do { } while (0) |
543 | #endif |
621 | #endif |
544 | |
622 | |
545 | #ifndef ECB_MEMORY_FENCE |
623 | #ifndef ECB_MEMORY_FENCE |
546 | #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 |
547 | #if __i386__ |
625 | #if __i386 || __i386__ |
548 | #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") |
549 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ |
627 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
550 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ |
628 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
551 | #elif __amd64 |
629 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
552 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
630 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
553 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
631 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
554 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ |
632 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
555 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
633 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
556 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
634 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
557 | #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ |
635 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
558 | || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) |
636 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
559 | #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") |
560 | #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \ |
638 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
561 | || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) |
639 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
562 | #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") |
563 | #endif |
666 | #endif |
564 | #endif |
667 | #endif |
565 | #endif |
668 | #endif |
566 | |
669 | |
567 | #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 | |
568 | #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__) |
688 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
569 | #define ECB_MEMORY_FENCE __sync_synchronize () |
689 | #define ECB_MEMORY_FENCE __sync_synchronize () |
570 | /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ |
690 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
571 | /*#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() |
572 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
696 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
573 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
697 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
574 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
698 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
575 | #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 */ |
576 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
700 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
577 | #elif defined(_WIN32) |
701 | #elif defined _WIN32 |
578 | #include <WinNT.h> |
702 | #include <WinNT.h> |
579 | #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) |
580 | #endif |
728 | #endif |
581 | #endif |
729 | #endif |
582 | |
730 | |
583 | #ifndef ECB_MEMORY_FENCE |
731 | #ifndef ECB_MEMORY_FENCE |
584 | #if !ECB_AVOID_PTHREADS |
732 | #if !ECB_AVOID_PTHREADS |
… | |
… | |
596 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
744 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
597 | #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) |
598 | #endif |
746 | #endif |
599 | #endif |
747 | #endif |
600 | |
748 | |
601 | #if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) |
749 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
602 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
750 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
603 | #endif |
751 | #endif |
604 | |
752 | |
605 | #if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) |
753 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
606 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
754 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
607 | #endif |
755 | #endif |
608 | |
756 | |
609 | /*****************************************************************************/ |
757 | /*****************************************************************************/ |
610 | |
|
|
611 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
|
|
612 | |
758 | |
613 | #if __cplusplus |
759 | #if __cplusplus |
614 | #define ecb_inline static inline |
760 | #define ecb_inline static inline |
615 | #elif ECB_GCC_VERSION(2,5) |
761 | #elif ECB_GCC_VERSION(2,5) |
616 | #define ecb_inline static __inline__ |
762 | #define ecb_inline static __inline__ |
… | |
… | |
642 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
788 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
643 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
789 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
644 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
790 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
645 | #else |
791 | #else |
646 | #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 | |
647 | #define ecb_is_constant(expr) 0 |
798 | #define ecb_is_constant(expr) 0 |
648 | #define ecb_expect(expr,value) (expr) |
799 | #define ecb_expect(expr,value) (expr) |
649 | #define ecb_prefetch(addr,rw,locality) |
800 | #define ecb_prefetch(addr,rw,locality) |
650 | #endif |
801 | #endif |
651 | |
802 | |
… | |
… | |
654 | #define ecb_decltype(x) __decltype(x) |
805 | #define ecb_decltype(x) __decltype(x) |
655 | #elif ECB_GCC_VERSION(3,0) |
806 | #elif ECB_GCC_VERSION(3,0) |
656 | #define ecb_decltype(x) __typeof(x) |
807 | #define ecb_decltype(x) __typeof(x) |
657 | #endif |
808 | #endif |
658 | |
809 | |
|
|
810 | #if _MSC_VER >= 1300 |
|
|
811 | #define ecb_deprecated __declspec(deprecated) |
|
|
812 | #else |
|
|
813 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
|
|
814 | #endif |
|
|
815 | |
659 | #define ecb_noinline ecb_attribute ((__noinline__)) |
816 | #define ecb_noinline ecb_attribute ((__noinline__)) |
660 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
661 | #define ecb_unused ecb_attribute ((__unused__)) |
817 | #define ecb_unused ecb_attribute ((__unused__)) |
662 | #define ecb_const ecb_attribute ((__const__)) |
818 | #define ecb_const ecb_attribute ((__const__)) |
663 | #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 |
664 | |
827 | |
665 | #if ECB_GCC_VERSION(4,3) |
828 | #if ECB_GCC_VERSION(4,3) |
666 | #define ecb_artificial ecb_attribute ((__artificial__)) |
829 | #define ecb_artificial ecb_attribute ((__artificial__)) |
667 | #define ecb_hot ecb_attribute ((__hot__)) |
830 | #define ecb_hot ecb_attribute ((__hot__)) |
668 | #define ecb_cold ecb_attribute ((__cold__)) |
831 | #define ecb_cold ecb_attribute ((__cold__)) |
… | |
… | |
759 | |
922 | |
760 | return r + ecb_ld32 (x); |
923 | return r + ecb_ld32 (x); |
761 | } |
924 | } |
762 | #endif |
925 | #endif |
763 | |
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 | |
764 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
962 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
765 | /* so for this version we are lazy */ |
963 | /* so for this version we are lazy */ |
766 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
964 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
767 | ecb_function_ int |
965 | ecb_function_ int |
768 | ecb_popcount64 (uint64_t x) |
966 | ecb_popcount64 (uint64_t x) |
… | |
… | |
817 | |
1015 | |
818 | #if ECB_GCC_VERSION(4,5) |
1016 | #if ECB_GCC_VERSION(4,5) |
819 | #define ecb_unreachable() __builtin_unreachable () |
1017 | #define ecb_unreachable() __builtin_unreachable () |
820 | #else |
1018 | #else |
821 | /* 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 :/ */ |
822 | ecb_function_ void ecb_unreachable (void) ecb_noreturn; |
1020 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
823 | ecb_function_ void ecb_unreachable (void) { } |
1021 | ecb_inline void ecb_unreachable (void) { } |
824 | #endif |
1022 | #endif |
825 | |
1023 | |
826 | /* try to tell the compiler that some condition is definitely true */ |
1024 | /* try to tell the compiler that some condition is definitely true */ |
827 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
1025 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
828 | |
1026 | |
829 | ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const; |
1027 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
830 | ecb_function_ unsigned char |
1028 | ecb_inline unsigned char |
831 | ecb_byteorder_helper (void) |
1029 | ecb_byteorder_helper (void) |
832 | { |
1030 | { |
833 | const uint32_t u = 0x11223344; |
1031 | /* the union code still generates code under pressure in gcc, */ |
834 | 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 |
835 | } |
1051 | } |
836 | |
1052 | |
837 | ecb_function_ ecb_bool ecb_big_endian (void) ecb_const; |
1053 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
838 | 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; } |
839 | ecb_function_ ecb_bool ecb_little_endian (void) ecb_const; |
1055 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
840 | 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; } |
841 | |
1057 | |
842 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1058 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
843 | #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)) |
844 | #else |
1060 | #else |
845 | #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))) |
… | |
… | |
870 | } |
1086 | } |
871 | #else |
1087 | #else |
872 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1088 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
873 | #endif |
1089 | #endif |
874 | |
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 | |
875 | #endif |
1293 | #endif |
876 | |
1294 | |
877 | /* ECB.H END */ |
1295 | /* ECB.H END */ |
878 | |
1296 | |
879 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
1297 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
880 | /* 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 |
881 | * 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 |
882 | * 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 |
883 | * libev, in which casess the memory fences become nops. |
1301 | * libev, in which cases the memory fences become nops. |
884 | * alternatively, you can remove this #error and link against libpthread, |
1302 | * alternatively, you can remove this #error and link against libpthread, |
885 | * which will then provide the memory fences. |
1303 | * which will then provide the memory fences. |
886 | */ |
1304 | */ |
887 | # error "memory fences not defined for your architecture, please report" |
1305 | # error "memory fences not defined for your architecture, please report" |
888 | #endif |
1306 | #endif |
… | |
… | |
1045 | { |
1463 | { |
1046 | write (STDERR_FILENO, msg, strlen (msg)); |
1464 | write (STDERR_FILENO, msg, strlen (msg)); |
1047 | } |
1465 | } |
1048 | #endif |
1466 | #endif |
1049 | |
1467 | |
1050 | static void (*syserr_cb)(const char *msg); |
1468 | static void (*syserr_cb)(const char *msg) EV_THROW; |
1051 | |
1469 | |
1052 | void ecb_cold |
1470 | void ecb_cold |
1053 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1471 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
1054 | { |
1472 | { |
1055 | syserr_cb = cb; |
1473 | syserr_cb = cb; |
1056 | } |
1474 | } |
1057 | |
1475 | |
1058 | static void noinline ecb_cold |
1476 | static void noinline ecb_cold |
… | |
… | |
1076 | abort (); |
1494 | abort (); |
1077 | } |
1495 | } |
1078 | } |
1496 | } |
1079 | |
1497 | |
1080 | static void * |
1498 | static void * |
1081 | ev_realloc_emul (void *ptr, long size) |
1499 | ev_realloc_emul (void *ptr, long size) EV_THROW |
1082 | { |
1500 | { |
1083 | #if __GLIBC__ |
|
|
1084 | return realloc (ptr, size); |
|
|
1085 | #else |
|
|
1086 | /* some systems, notably openbsd and darwin, fail to properly |
1501 | /* some systems, notably openbsd and darwin, fail to properly |
1087 | * 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 |
1088 | * 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. |
1089 | */ |
1506 | */ |
1090 | |
1507 | |
1091 | if (size) |
1508 | if (size) |
1092 | return realloc (ptr, size); |
1509 | return realloc (ptr, size); |
1093 | |
1510 | |
1094 | free (ptr); |
1511 | free (ptr); |
1095 | return 0; |
1512 | return 0; |
1096 | #endif |
|
|
1097 | } |
1513 | } |
1098 | |
1514 | |
1099 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1515 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
1100 | |
1516 | |
1101 | void ecb_cold |
1517 | void ecb_cold |
1102 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1518 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
1103 | { |
1519 | { |
1104 | alloc = cb; |
1520 | alloc = cb; |
1105 | } |
1521 | } |
1106 | |
1522 | |
1107 | inline_speed void * |
1523 | inline_speed void * |
… | |
… | |
1195 | #undef VAR |
1611 | #undef VAR |
1196 | }; |
1612 | }; |
1197 | #include "ev_wrap.h" |
1613 | #include "ev_wrap.h" |
1198 | |
1614 | |
1199 | static struct ev_loop default_loop_struct; |
1615 | static struct ev_loop default_loop_struct; |
1200 | 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 */ |
1201 | |
1617 | |
1202 | #else |
1618 | #else |
1203 | |
1619 | |
1204 | 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 */ |
1205 | #define VAR(name,decl) static decl; |
1621 | #define VAR(name,decl) static decl; |
1206 | #include "ev_vars.h" |
1622 | #include "ev_vars.h" |
1207 | #undef VAR |
1623 | #undef VAR |
1208 | |
1624 | |
1209 | static int ev_default_loop_ptr; |
1625 | static int ev_default_loop_ptr; |
… | |
… | |
1224 | |
1640 | |
1225 | /*****************************************************************************/ |
1641 | /*****************************************************************************/ |
1226 | |
1642 | |
1227 | #ifndef EV_HAVE_EV_TIME |
1643 | #ifndef EV_HAVE_EV_TIME |
1228 | ev_tstamp |
1644 | ev_tstamp |
1229 | ev_time (void) |
1645 | ev_time (void) EV_THROW |
1230 | { |
1646 | { |
1231 | #if EV_USE_REALTIME |
1647 | #if EV_USE_REALTIME |
1232 | if (expect_true (have_realtime)) |
1648 | if (expect_true (have_realtime)) |
1233 | { |
1649 | { |
1234 | struct timespec ts; |
1650 | struct timespec ts; |
… | |
… | |
1258 | return ev_time (); |
1674 | return ev_time (); |
1259 | } |
1675 | } |
1260 | |
1676 | |
1261 | #if EV_MULTIPLICITY |
1677 | #if EV_MULTIPLICITY |
1262 | ev_tstamp |
1678 | ev_tstamp |
1263 | ev_now (EV_P) |
1679 | ev_now (EV_P) EV_THROW |
1264 | { |
1680 | { |
1265 | return ev_rt_now; |
1681 | return ev_rt_now; |
1266 | } |
1682 | } |
1267 | #endif |
1683 | #endif |
1268 | |
1684 | |
1269 | void |
1685 | void |
1270 | ev_sleep (ev_tstamp delay) |
1686 | ev_sleep (ev_tstamp delay) EV_THROW |
1271 | { |
1687 | { |
1272 | if (delay > 0.) |
1688 | if (delay > 0.) |
1273 | { |
1689 | { |
1274 | #if EV_USE_NANOSLEEP |
1690 | #if EV_USE_NANOSLEEP |
1275 | struct timespec ts; |
1691 | struct timespec ts; |
1276 | |
1692 | |
1277 | EV_TS_SET (ts, delay); |
1693 | EV_TS_SET (ts, delay); |
1278 | nanosleep (&ts, 0); |
1694 | nanosleep (&ts, 0); |
1279 | #elif defined(_WIN32) |
1695 | #elif defined _WIN32 |
1280 | Sleep ((unsigned long)(delay * 1e3)); |
1696 | Sleep ((unsigned long)(delay * 1e3)); |
1281 | #else |
1697 | #else |
1282 | struct timeval tv; |
1698 | struct timeval tv; |
1283 | |
1699 | |
1284 | /* 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 */ |
… | |
… | |
1303 | |
1719 | |
1304 | do |
1720 | do |
1305 | ncur <<= 1; |
1721 | ncur <<= 1; |
1306 | while (cnt > ncur); |
1722 | while (cnt > ncur); |
1307 | |
1723 | |
1308 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
1724 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
1309 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1725 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1310 | { |
1726 | { |
1311 | ncur *= elem; |
1727 | ncur *= elem; |
1312 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1728 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1313 | ncur = ncur - sizeof (void *) * 4; |
1729 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
1356 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1772 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1357 | { |
1773 | { |
1358 | } |
1774 | } |
1359 | |
1775 | |
1360 | void noinline |
1776 | void noinline |
1361 | ev_feed_event (EV_P_ void *w, int revents) |
1777 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
1362 | { |
1778 | { |
1363 | W w_ = (W)w; |
1779 | W w_ = (W)w; |
1364 | int pri = ABSPRI (w_); |
1780 | int pri = ABSPRI (w_); |
1365 | |
1781 | |
1366 | if (expect_false (w_->pending)) |
1782 | if (expect_false (w_->pending)) |
… | |
… | |
1370 | w_->pending = ++pendingcnt [pri]; |
1786 | w_->pending = ++pendingcnt [pri]; |
1371 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
1787 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
1372 | pendings [pri][w_->pending - 1].w = w_; |
1788 | pendings [pri][w_->pending - 1].w = w_; |
1373 | pendings [pri][w_->pending - 1].events = revents; |
1789 | pendings [pri][w_->pending - 1].events = revents; |
1374 | } |
1790 | } |
|
|
1791 | |
|
|
1792 | pendingpri = NUMPRI - 1; |
1375 | } |
1793 | } |
1376 | |
1794 | |
1377 | inline_speed void |
1795 | inline_speed void |
1378 | feed_reverse (EV_P_ W w) |
1796 | feed_reverse (EV_P_ W w) |
1379 | { |
1797 | { |
… | |
… | |
1425 | if (expect_true (!anfd->reify)) |
1843 | if (expect_true (!anfd->reify)) |
1426 | fd_event_nocheck (EV_A_ fd, revents); |
1844 | fd_event_nocheck (EV_A_ fd, revents); |
1427 | } |
1845 | } |
1428 | |
1846 | |
1429 | void |
1847 | void |
1430 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1848 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
1431 | { |
1849 | { |
1432 | if (fd >= 0 && fd < anfdmax) |
1850 | if (fd >= 0 && fd < anfdmax) |
1433 | fd_event_nocheck (EV_A_ fd, revents); |
1851 | fd_event_nocheck (EV_A_ fd, revents); |
1434 | } |
1852 | } |
1435 | |
1853 | |
… | |
… | |
1754 | static void noinline ecb_cold |
2172 | static void noinline ecb_cold |
1755 | evpipe_init (EV_P) |
2173 | evpipe_init (EV_P) |
1756 | { |
2174 | { |
1757 | if (!ev_is_active (&pipe_w)) |
2175 | if (!ev_is_active (&pipe_w)) |
1758 | { |
2176 | { |
|
|
2177 | int fds [2]; |
|
|
2178 | |
1759 | # if EV_USE_EVENTFD |
2179 | # if EV_USE_EVENTFD |
|
|
2180 | fds [0] = -1; |
1760 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2181 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1761 | if (evfd < 0 && errno == EINVAL) |
2182 | if (fds [1] < 0 && errno == EINVAL) |
1762 | evfd = eventfd (0, 0); |
2183 | fds [1] = eventfd (0, 0); |
1763 | |
2184 | |
1764 | if (evfd >= 0) |
2185 | if (fds [1] < 0) |
|
|
2186 | # endif |
1765 | { |
2187 | { |
|
|
2188 | while (pipe (fds)) |
|
|
2189 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2190 | |
|
|
2191 | fd_intern (fds [0]); |
|
|
2192 | } |
|
|
2193 | |
1766 | evpipe [0] = -1; |
2194 | evpipe [0] = fds [0]; |
1767 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
2195 | |
1768 | 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)); |
1769 | } |
2246 | } |
1770 | else |
2247 | else |
1771 | # endif |
2248 | #endif |
1772 | { |
2249 | { |
1773 | while (pipe (evpipe)) |
2250 | #ifdef _WIN32 |
1774 | ev_syserr ("(libev) error creating signal/async pipe"); |
2251 | WSABUF buf; |
1775 | |
2252 | DWORD sent; |
1776 | fd_intern (evpipe [0]); |
2253 | buf.buf = &buf; |
1777 | fd_intern (evpipe [1]); |
2254 | buf.len = 1; |
1778 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
2255 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
1779 | } |
2256 | #else |
1780 | |
|
|
1781 | ev_io_start (EV_A_ &pipe_w); |
|
|
1782 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1783 | } |
|
|
1784 | } |
|
|
1785 | |
|
|
1786 | inline_speed void |
|
|
1787 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1788 | { |
|
|
1789 | if (expect_true (*flag)) |
|
|
1790 | return; |
|
|
1791 | |
|
|
1792 | *flag = 1; |
|
|
1793 | |
|
|
1794 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
1795 | |
|
|
1796 | pipe_write_skipped = 1; |
|
|
1797 | |
|
|
1798 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
1799 | |
|
|
1800 | if (pipe_write_wanted) |
|
|
1801 | { |
|
|
1802 | int old_errno; |
|
|
1803 | |
|
|
1804 | pipe_write_skipped = 0; /* just an optimisation, no fence needed */ |
|
|
1805 | |
|
|
1806 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
1807 | |
|
|
1808 | #if EV_USE_EVENTFD |
|
|
1809 | if (evfd >= 0) |
|
|
1810 | { |
|
|
1811 | uint64_t counter = 1; |
|
|
1812 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1813 | } |
|
|
1814 | else |
|
|
1815 | #endif |
|
|
1816 | { |
|
|
1817 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1818 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1819 | /* so when you think this write should be a send instead, please find out */ |
|
|
1820 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1821 | /* tell me. thank you. */ |
|
|
1822 | write (evpipe [1], &(evpipe [1]), 1); |
2257 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2258 | #endif |
1823 | } |
2259 | } |
1824 | |
2260 | |
1825 | errno = old_errno; |
2261 | errno = old_errno; |
1826 | } |
2262 | } |
1827 | } |
2263 | } |
… | |
… | |
1834 | int i; |
2270 | int i; |
1835 | |
2271 | |
1836 | if (revents & EV_READ) |
2272 | if (revents & EV_READ) |
1837 | { |
2273 | { |
1838 | #if EV_USE_EVENTFD |
2274 | #if EV_USE_EVENTFD |
1839 | if (evfd >= 0) |
2275 | if (evpipe [0] < 0) |
1840 | { |
2276 | { |
1841 | uint64_t counter; |
2277 | uint64_t counter; |
1842 | read (evfd, &counter, sizeof (uint64_t)); |
2278 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1843 | } |
2279 | } |
1844 | else |
2280 | else |
1845 | #endif |
2281 | #endif |
1846 | { |
2282 | { |
1847 | char dummy; |
2283 | char dummy[4]; |
1848 | /* 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 |
1849 | read (evpipe [0], &dummy, 1); |
2292 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2293 | #endif |
1850 | } |
2294 | } |
1851 | } |
2295 | } |
1852 | |
2296 | |
1853 | pipe_write_skipped = 0; |
2297 | pipe_write_skipped = 0; |
|
|
2298 | |
|
|
2299 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
1854 | |
2300 | |
1855 | #if EV_SIGNAL_ENABLE |
2301 | #if EV_SIGNAL_ENABLE |
1856 | if (sig_pending) |
2302 | if (sig_pending) |
1857 | { |
2303 | { |
1858 | sig_pending = 0; |
2304 | sig_pending = 0; |
|
|
2305 | |
|
|
2306 | ECB_MEMORY_FENCE; |
1859 | |
2307 | |
1860 | for (i = EV_NSIG - 1; i--; ) |
2308 | for (i = EV_NSIG - 1; i--; ) |
1861 | if (expect_false (signals [i].pending)) |
2309 | if (expect_false (signals [i].pending)) |
1862 | ev_feed_signal_event (EV_A_ i + 1); |
2310 | ev_feed_signal_event (EV_A_ i + 1); |
1863 | } |
2311 | } |
… | |
… | |
1865 | |
2313 | |
1866 | #if EV_ASYNC_ENABLE |
2314 | #if EV_ASYNC_ENABLE |
1867 | if (async_pending) |
2315 | if (async_pending) |
1868 | { |
2316 | { |
1869 | async_pending = 0; |
2317 | async_pending = 0; |
|
|
2318 | |
|
|
2319 | ECB_MEMORY_FENCE; |
1870 | |
2320 | |
1871 | for (i = asynccnt; i--; ) |
2321 | for (i = asynccnt; i--; ) |
1872 | if (asyncs [i]->sent) |
2322 | if (asyncs [i]->sent) |
1873 | { |
2323 | { |
1874 | asyncs [i]->sent = 0; |
2324 | asyncs [i]->sent = 0; |
|
|
2325 | ECB_MEMORY_FENCE_RELEASE; |
1875 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2326 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1876 | } |
2327 | } |
1877 | } |
2328 | } |
1878 | #endif |
2329 | #endif |
1879 | } |
2330 | } |
1880 | |
2331 | |
1881 | /*****************************************************************************/ |
2332 | /*****************************************************************************/ |
1882 | |
2333 | |
1883 | void |
2334 | void |
1884 | ev_feed_signal (int signum) |
2335 | ev_feed_signal (int signum) EV_THROW |
1885 | { |
2336 | { |
1886 | #if EV_MULTIPLICITY |
2337 | #if EV_MULTIPLICITY |
|
|
2338 | EV_P; |
|
|
2339 | ECB_MEMORY_FENCE_ACQUIRE; |
1887 | EV_P = signals [signum - 1].loop; |
2340 | EV_A = signals [signum - 1].loop; |
1888 | |
2341 | |
1889 | if (!EV_A) |
2342 | if (!EV_A) |
1890 | return; |
2343 | return; |
1891 | #endif |
2344 | #endif |
1892 | |
2345 | |
1893 | if (!ev_active (&pipe_w)) |
|
|
1894 | return; |
|
|
1895 | |
|
|
1896 | signals [signum - 1].pending = 1; |
2346 | signals [signum - 1].pending = 1; |
1897 | evpipe_write (EV_A_ &sig_pending); |
2347 | evpipe_write (EV_A_ &sig_pending); |
1898 | } |
2348 | } |
1899 | |
2349 | |
1900 | static void |
2350 | static void |
… | |
… | |
1906 | |
2356 | |
1907 | ev_feed_signal (signum); |
2357 | ev_feed_signal (signum); |
1908 | } |
2358 | } |
1909 | |
2359 | |
1910 | void noinline |
2360 | void noinline |
1911 | ev_feed_signal_event (EV_P_ int signum) |
2361 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
1912 | { |
2362 | { |
1913 | WL w; |
2363 | WL w; |
1914 | |
2364 | |
1915 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2365 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
1916 | return; |
2366 | return; |
1917 | |
2367 | |
1918 | --signum; |
2368 | --signum; |
1919 | |
2369 | |
1920 | #if EV_MULTIPLICITY |
2370 | #if EV_MULTIPLICITY |
… | |
… | |
1924 | if (expect_false (signals [signum].loop != EV_A)) |
2374 | if (expect_false (signals [signum].loop != EV_A)) |
1925 | return; |
2375 | return; |
1926 | #endif |
2376 | #endif |
1927 | |
2377 | |
1928 | signals [signum].pending = 0; |
2378 | signals [signum].pending = 0; |
|
|
2379 | ECB_MEMORY_FENCE_RELEASE; |
1929 | |
2380 | |
1930 | for (w = signals [signum].head; w; w = w->next) |
2381 | for (w = signals [signum].head; w; w = w->next) |
1931 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2382 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1932 | } |
2383 | } |
1933 | |
2384 | |
… | |
… | |
2032 | #if EV_USE_SELECT |
2483 | #if EV_USE_SELECT |
2033 | # include "ev_select.c" |
2484 | # include "ev_select.c" |
2034 | #endif |
2485 | #endif |
2035 | |
2486 | |
2036 | int ecb_cold |
2487 | int ecb_cold |
2037 | ev_version_major (void) |
2488 | ev_version_major (void) EV_THROW |
2038 | { |
2489 | { |
2039 | return EV_VERSION_MAJOR; |
2490 | return EV_VERSION_MAJOR; |
2040 | } |
2491 | } |
2041 | |
2492 | |
2042 | int ecb_cold |
2493 | int ecb_cold |
2043 | ev_version_minor (void) |
2494 | ev_version_minor (void) EV_THROW |
2044 | { |
2495 | { |
2045 | return EV_VERSION_MINOR; |
2496 | return EV_VERSION_MINOR; |
2046 | } |
2497 | } |
2047 | |
2498 | |
2048 | /* 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 */ |
… | |
… | |
2056 | || getgid () != getegid (); |
2507 | || getgid () != getegid (); |
2057 | #endif |
2508 | #endif |
2058 | } |
2509 | } |
2059 | |
2510 | |
2060 | unsigned int ecb_cold |
2511 | unsigned int ecb_cold |
2061 | ev_supported_backends (void) |
2512 | ev_supported_backends (void) EV_THROW |
2062 | { |
2513 | { |
2063 | unsigned int flags = 0; |
2514 | unsigned int flags = 0; |
2064 | |
2515 | |
2065 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2516 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2066 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2517 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
… | |
… | |
2070 | |
2521 | |
2071 | return flags; |
2522 | return flags; |
2072 | } |
2523 | } |
2073 | |
2524 | |
2074 | unsigned int ecb_cold |
2525 | unsigned int ecb_cold |
2075 | ev_recommended_backends (void) |
2526 | ev_recommended_backends (void) EV_THROW |
2076 | { |
2527 | { |
2077 | unsigned int flags = ev_supported_backends (); |
2528 | unsigned int flags = ev_supported_backends (); |
2078 | |
2529 | |
2079 | #ifndef __NetBSD__ |
2530 | #ifndef __NetBSD__ |
2080 | /* kqueue is borked on everything but netbsd apparently */ |
2531 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
2092 | |
2543 | |
2093 | return flags; |
2544 | return flags; |
2094 | } |
2545 | } |
2095 | |
2546 | |
2096 | unsigned int ecb_cold |
2547 | unsigned int ecb_cold |
2097 | ev_embeddable_backends (void) |
2548 | ev_embeddable_backends (void) EV_THROW |
2098 | { |
2549 | { |
2099 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2550 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2100 | |
2551 | |
2101 | /* 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 */ |
2102 | 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 */ |
… | |
… | |
2104 | |
2555 | |
2105 | return flags; |
2556 | return flags; |
2106 | } |
2557 | } |
2107 | |
2558 | |
2108 | unsigned int |
2559 | unsigned int |
2109 | ev_backend (EV_P) |
2560 | ev_backend (EV_P) EV_THROW |
2110 | { |
2561 | { |
2111 | return backend; |
2562 | return backend; |
2112 | } |
2563 | } |
2113 | |
2564 | |
2114 | #if EV_FEATURE_API |
2565 | #if EV_FEATURE_API |
2115 | unsigned int |
2566 | unsigned int |
2116 | ev_iteration (EV_P) |
2567 | ev_iteration (EV_P) EV_THROW |
2117 | { |
2568 | { |
2118 | return loop_count; |
2569 | return loop_count; |
2119 | } |
2570 | } |
2120 | |
2571 | |
2121 | unsigned int |
2572 | unsigned int |
2122 | ev_depth (EV_P) |
2573 | ev_depth (EV_P) EV_THROW |
2123 | { |
2574 | { |
2124 | return loop_depth; |
2575 | return loop_depth; |
2125 | } |
2576 | } |
2126 | |
2577 | |
2127 | void |
2578 | void |
2128 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2579 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
2129 | { |
2580 | { |
2130 | io_blocktime = interval; |
2581 | io_blocktime = interval; |
2131 | } |
2582 | } |
2132 | |
2583 | |
2133 | void |
2584 | void |
2134 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2585 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
2135 | { |
2586 | { |
2136 | timeout_blocktime = interval; |
2587 | timeout_blocktime = interval; |
2137 | } |
2588 | } |
2138 | |
2589 | |
2139 | void |
2590 | void |
2140 | ev_set_userdata (EV_P_ void *data) |
2591 | ev_set_userdata (EV_P_ void *data) EV_THROW |
2141 | { |
2592 | { |
2142 | userdata = data; |
2593 | userdata = data; |
2143 | } |
2594 | } |
2144 | |
2595 | |
2145 | void * |
2596 | void * |
2146 | ev_userdata (EV_P) |
2597 | ev_userdata (EV_P) EV_THROW |
2147 | { |
2598 | { |
2148 | return userdata; |
2599 | return userdata; |
2149 | } |
2600 | } |
2150 | |
2601 | |
2151 | void |
2602 | void |
2152 | 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 |
2153 | { |
2604 | { |
2154 | invoke_cb = invoke_pending_cb; |
2605 | invoke_cb = invoke_pending_cb; |
2155 | } |
2606 | } |
2156 | |
2607 | |
2157 | void |
2608 | void |
2158 | 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 |
2159 | { |
2610 | { |
2160 | release_cb = release; |
2611 | release_cb = release; |
2161 | acquire_cb = acquire; |
2612 | acquire_cb = acquire; |
2162 | } |
2613 | } |
2163 | #endif |
2614 | #endif |
2164 | |
2615 | |
2165 | /* initialise a loop structure, must be zero-initialised */ |
2616 | /* initialise a loop structure, must be zero-initialised */ |
2166 | static void noinline ecb_cold |
2617 | static void noinline ecb_cold |
2167 | loop_init (EV_P_ unsigned int flags) |
2618 | loop_init (EV_P_ unsigned int flags) EV_THROW |
2168 | { |
2619 | { |
2169 | if (!backend) |
2620 | if (!backend) |
2170 | { |
2621 | { |
2171 | origflags = flags; |
2622 | origflags = flags; |
2172 | |
2623 | |
… | |
… | |
2217 | #if EV_ASYNC_ENABLE |
2668 | #if EV_ASYNC_ENABLE |
2218 | async_pending = 0; |
2669 | async_pending = 0; |
2219 | #endif |
2670 | #endif |
2220 | pipe_write_skipped = 0; |
2671 | pipe_write_skipped = 0; |
2221 | pipe_write_wanted = 0; |
2672 | pipe_write_wanted = 0; |
|
|
2673 | evpipe [0] = -1; |
|
|
2674 | evpipe [1] = -1; |
2222 | #if EV_USE_INOTIFY |
2675 | #if EV_USE_INOTIFY |
2223 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2676 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2224 | #endif |
2677 | #endif |
2225 | #if EV_USE_SIGNALFD |
2678 | #if EV_USE_SIGNALFD |
2226 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2679 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
… | |
… | |
2277 | EV_INVOKE_PENDING; |
2730 | EV_INVOKE_PENDING; |
2278 | } |
2731 | } |
2279 | #endif |
2732 | #endif |
2280 | |
2733 | |
2281 | #if EV_CHILD_ENABLE |
2734 | #if EV_CHILD_ENABLE |
2282 | if (ev_is_active (&childev)) |
2735 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
2283 | { |
2736 | { |
2284 | ev_ref (EV_A); /* child watcher */ |
2737 | ev_ref (EV_A); /* child watcher */ |
2285 | ev_signal_stop (EV_A_ &childev); |
2738 | ev_signal_stop (EV_A_ &childev); |
2286 | } |
2739 | } |
2287 | #endif |
2740 | #endif |
… | |
… | |
2289 | if (ev_is_active (&pipe_w)) |
2742 | if (ev_is_active (&pipe_w)) |
2290 | { |
2743 | { |
2291 | /*ev_ref (EV_A);*/ |
2744 | /*ev_ref (EV_A);*/ |
2292 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2745 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2293 | |
2746 | |
2294 | #if EV_USE_EVENTFD |
|
|
2295 | if (evfd >= 0) |
|
|
2296 | close (evfd); |
|
|
2297 | #endif |
|
|
2298 | |
|
|
2299 | if (evpipe [0] >= 0) |
|
|
2300 | { |
|
|
2301 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2747 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
2302 | EV_WIN32_CLOSE_FD (evpipe [1]); |
2748 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
2303 | } |
|
|
2304 | } |
2749 | } |
2305 | |
2750 | |
2306 | #if EV_USE_SIGNALFD |
2751 | #if EV_USE_SIGNALFD |
2307 | if (ev_is_active (&sigfd_w)) |
2752 | if (ev_is_active (&sigfd_w)) |
2308 | close (sigfd); |
2753 | close (sigfd); |
… | |
… | |
2394 | #endif |
2839 | #endif |
2395 | #if EV_USE_INOTIFY |
2840 | #if EV_USE_INOTIFY |
2396 | infy_fork (EV_A); |
2841 | infy_fork (EV_A); |
2397 | #endif |
2842 | #endif |
2398 | |
2843 | |
|
|
2844 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2399 | if (ev_is_active (&pipe_w)) |
2845 | if (ev_is_active (&pipe_w)) |
2400 | { |
2846 | { |
2401 | /* 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 */ |
2402 | |
2848 | |
2403 | ev_ref (EV_A); |
2849 | ev_ref (EV_A); |
2404 | ev_io_stop (EV_A_ &pipe_w); |
2850 | ev_io_stop (EV_A_ &pipe_w); |
2405 | |
2851 | |
2406 | #if EV_USE_EVENTFD |
|
|
2407 | if (evfd >= 0) |
|
|
2408 | close (evfd); |
|
|
2409 | #endif |
|
|
2410 | |
|
|
2411 | if (evpipe [0] >= 0) |
2852 | if (evpipe [0] >= 0) |
2412 | { |
|
|
2413 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2853 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2414 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
2415 | } |
|
|
2416 | |
2854 | |
2417 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
2418 | evpipe_init (EV_A); |
2855 | evpipe_init (EV_A); |
2419 | /* now iterate over everything, in case we missed something */ |
2856 | /* iterate over everything, in case we missed something before */ |
2420 | pipecb (EV_A_ &pipe_w, EV_READ); |
2857 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
2421 | #endif |
|
|
2422 | } |
2858 | } |
|
|
2859 | #endif |
2423 | |
2860 | |
2424 | postfork = 0; |
2861 | postfork = 0; |
2425 | } |
2862 | } |
2426 | |
2863 | |
2427 | #if EV_MULTIPLICITY |
2864 | #if EV_MULTIPLICITY |
2428 | |
2865 | |
2429 | struct ev_loop * ecb_cold |
2866 | struct ev_loop * ecb_cold |
2430 | ev_loop_new (unsigned int flags) |
2867 | ev_loop_new (unsigned int flags) EV_THROW |
2431 | { |
2868 | { |
2432 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2869 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2433 | |
2870 | |
2434 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2871 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2435 | loop_init (EV_A_ flags); |
2872 | loop_init (EV_A_ flags); |
… | |
… | |
2479 | } |
2916 | } |
2480 | #endif |
2917 | #endif |
2481 | |
2918 | |
2482 | #if EV_FEATURE_API |
2919 | #if EV_FEATURE_API |
2483 | void ecb_cold |
2920 | void ecb_cold |
2484 | ev_verify (EV_P) |
2921 | ev_verify (EV_P) EV_THROW |
2485 | { |
2922 | { |
2486 | #if EV_VERIFY |
2923 | #if EV_VERIFY |
2487 | int i; |
2924 | int i; |
2488 | WL w; |
2925 | WL w, w2; |
2489 | |
2926 | |
2490 | assert (activecnt >= -1); |
2927 | assert (activecnt >= -1); |
2491 | |
2928 | |
2492 | assert (fdchangemax >= fdchangecnt); |
2929 | assert (fdchangemax >= fdchangecnt); |
2493 | for (i = 0; i < fdchangecnt; ++i) |
2930 | for (i = 0; i < fdchangecnt; ++i) |
2494 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2931 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2495 | |
2932 | |
2496 | assert (anfdmax >= 0); |
2933 | assert (anfdmax >= 0); |
2497 | for (i = 0; i < anfdmax; ++i) |
2934 | for (i = 0; i < anfdmax; ++i) |
|
|
2935 | { |
|
|
2936 | int j = 0; |
|
|
2937 | |
2498 | for (w = anfds [i].head; w; w = w->next) |
2938 | for (w = w2 = anfds [i].head; w; w = w->next) |
2499 | { |
2939 | { |
2500 | 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 | |
2501 | 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)); |
2502 | 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)); |
2503 | } |
2950 | } |
|
|
2951 | } |
2504 | |
2952 | |
2505 | assert (timermax >= timercnt); |
2953 | assert (timermax >= timercnt); |
2506 | verify_heap (EV_A_ timers, timercnt); |
2954 | verify_heap (EV_A_ timers, timercnt); |
2507 | |
2955 | |
2508 | #if EV_PERIODIC_ENABLE |
2956 | #if EV_PERIODIC_ENABLE |
… | |
… | |
2558 | #if EV_MULTIPLICITY |
3006 | #if EV_MULTIPLICITY |
2559 | struct ev_loop * ecb_cold |
3007 | struct ev_loop * ecb_cold |
2560 | #else |
3008 | #else |
2561 | int |
3009 | int |
2562 | #endif |
3010 | #endif |
2563 | ev_default_loop (unsigned int flags) |
3011 | ev_default_loop (unsigned int flags) EV_THROW |
2564 | { |
3012 | { |
2565 | if (!ev_default_loop_ptr) |
3013 | if (!ev_default_loop_ptr) |
2566 | { |
3014 | { |
2567 | #if EV_MULTIPLICITY |
3015 | #if EV_MULTIPLICITY |
2568 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
3016 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
2587 | |
3035 | |
2588 | return ev_default_loop_ptr; |
3036 | return ev_default_loop_ptr; |
2589 | } |
3037 | } |
2590 | |
3038 | |
2591 | void |
3039 | void |
2592 | ev_loop_fork (EV_P) |
3040 | ev_loop_fork (EV_P) EV_THROW |
2593 | { |
3041 | { |
2594 | postfork = 1; /* must be in line with ev_default_fork */ |
3042 | postfork = 1; |
2595 | } |
3043 | } |
2596 | |
3044 | |
2597 | /*****************************************************************************/ |
3045 | /*****************************************************************************/ |
2598 | |
3046 | |
2599 | void |
3047 | void |
… | |
… | |
2601 | { |
3049 | { |
2602 | EV_CB_INVOKE ((W)w, revents); |
3050 | EV_CB_INVOKE ((W)w, revents); |
2603 | } |
3051 | } |
2604 | |
3052 | |
2605 | unsigned int |
3053 | unsigned int |
2606 | ev_pending_count (EV_P) |
3054 | ev_pending_count (EV_P) EV_THROW |
2607 | { |
3055 | { |
2608 | int pri; |
3056 | int pri; |
2609 | unsigned int count = 0; |
3057 | unsigned int count = 0; |
2610 | |
3058 | |
2611 | for (pri = NUMPRI; pri--; ) |
3059 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
2615 | } |
3063 | } |
2616 | |
3064 | |
2617 | void noinline |
3065 | void noinline |
2618 | ev_invoke_pending (EV_P) |
3066 | ev_invoke_pending (EV_P) |
2619 | { |
3067 | { |
2620 | int pri; |
3068 | pendingpri = NUMPRI; |
2621 | |
3069 | |
2622 | for (pri = NUMPRI; pri--; ) |
3070 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
|
|
3071 | { |
|
|
3072 | --pendingpri; |
|
|
3073 | |
2623 | while (pendingcnt [pri]) |
3074 | while (pendingcnt [pendingpri]) |
2624 | { |
3075 | { |
2625 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
3076 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2626 | |
3077 | |
2627 | p->w->pending = 0; |
3078 | p->w->pending = 0; |
2628 | EV_CB_INVOKE (p->w, p->events); |
3079 | EV_CB_INVOKE (p->w, p->events); |
2629 | EV_FREQUENT_CHECK; |
3080 | EV_FREQUENT_CHECK; |
2630 | } |
3081 | } |
|
|
3082 | } |
2631 | } |
3083 | } |
2632 | |
3084 | |
2633 | #if EV_IDLE_ENABLE |
3085 | #if EV_IDLE_ENABLE |
2634 | /* make idle watchers pending. this handles the "call-idle */ |
3086 | /* make idle watchers pending. this handles the "call-idle */ |
2635 | /* only when higher priorities are idle" logic */ |
3087 | /* only when higher priorities are idle" logic */ |
… | |
… | |
2725 | { |
3177 | { |
2726 | EV_FREQUENT_CHECK; |
3178 | EV_FREQUENT_CHECK; |
2727 | |
3179 | |
2728 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3180 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2729 | { |
3181 | { |
2730 | int feed_count = 0; |
|
|
2731 | |
|
|
2732 | do |
3182 | do |
2733 | { |
3183 | { |
2734 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3184 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2735 | |
3185 | |
2736 | /*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)));*/ |
… | |
… | |
2870 | |
3320 | |
2871 | mn_now = ev_rt_now; |
3321 | mn_now = ev_rt_now; |
2872 | } |
3322 | } |
2873 | } |
3323 | } |
2874 | |
3324 | |
2875 | void |
3325 | int |
2876 | ev_run (EV_P_ int flags) |
3326 | ev_run (EV_P_ int flags) |
2877 | { |
3327 | { |
2878 | #if EV_FEATURE_API |
3328 | #if EV_FEATURE_API |
2879 | ++loop_depth; |
3329 | ++loop_depth; |
2880 | #endif |
3330 | #endif |
… | |
… | |
2993 | #endif |
3443 | #endif |
2994 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
3444 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2995 | backend_poll (EV_A_ waittime); |
3445 | backend_poll (EV_A_ waittime); |
2996 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3446 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2997 | |
3447 | |
2998 | pipe_write_wanted = 0; /* just an optimsiation, no fence needed */ |
3448 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
2999 | |
3449 | |
|
|
3450 | ECB_MEMORY_FENCE_ACQUIRE; |
3000 | if (pipe_write_skipped) |
3451 | if (pipe_write_skipped) |
3001 | { |
3452 | { |
3002 | 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))); |
3003 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3454 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3004 | } |
3455 | } |
… | |
… | |
3037 | loop_done = EVBREAK_CANCEL; |
3488 | loop_done = EVBREAK_CANCEL; |
3038 | |
3489 | |
3039 | #if EV_FEATURE_API |
3490 | #if EV_FEATURE_API |
3040 | --loop_depth; |
3491 | --loop_depth; |
3041 | #endif |
3492 | #endif |
|
|
3493 | |
|
|
3494 | return activecnt; |
3042 | } |
3495 | } |
3043 | |
3496 | |
3044 | void |
3497 | void |
3045 | ev_break (EV_P_ int how) |
3498 | ev_break (EV_P_ int how) EV_THROW |
3046 | { |
3499 | { |
3047 | loop_done = how; |
3500 | loop_done = how; |
3048 | } |
3501 | } |
3049 | |
3502 | |
3050 | void |
3503 | void |
3051 | ev_ref (EV_P) |
3504 | ev_ref (EV_P) EV_THROW |
3052 | { |
3505 | { |
3053 | ++activecnt; |
3506 | ++activecnt; |
3054 | } |
3507 | } |
3055 | |
3508 | |
3056 | void |
3509 | void |
3057 | ev_unref (EV_P) |
3510 | ev_unref (EV_P) EV_THROW |
3058 | { |
3511 | { |
3059 | --activecnt; |
3512 | --activecnt; |
3060 | } |
3513 | } |
3061 | |
3514 | |
3062 | void |
3515 | void |
3063 | ev_now_update (EV_P) |
3516 | ev_now_update (EV_P) EV_THROW |
3064 | { |
3517 | { |
3065 | time_update (EV_A_ 1e100); |
3518 | time_update (EV_A_ 1e100); |
3066 | } |
3519 | } |
3067 | |
3520 | |
3068 | void |
3521 | void |
3069 | ev_suspend (EV_P) |
3522 | ev_suspend (EV_P) EV_THROW |
3070 | { |
3523 | { |
3071 | ev_now_update (EV_A); |
3524 | ev_now_update (EV_A); |
3072 | } |
3525 | } |
3073 | |
3526 | |
3074 | void |
3527 | void |
3075 | ev_resume (EV_P) |
3528 | ev_resume (EV_P) EV_THROW |
3076 | { |
3529 | { |
3077 | ev_tstamp mn_prev = mn_now; |
3530 | ev_tstamp mn_prev = mn_now; |
3078 | |
3531 | |
3079 | ev_now_update (EV_A); |
3532 | ev_now_update (EV_A); |
3080 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3533 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
3119 | w->pending = 0; |
3572 | w->pending = 0; |
3120 | } |
3573 | } |
3121 | } |
3574 | } |
3122 | |
3575 | |
3123 | int |
3576 | int |
3124 | ev_clear_pending (EV_P_ void *w) |
3577 | ev_clear_pending (EV_P_ void *w) EV_THROW |
3125 | { |
3578 | { |
3126 | W w_ = (W)w; |
3579 | W w_ = (W)w; |
3127 | int pending = w_->pending; |
3580 | int pending = w_->pending; |
3128 | |
3581 | |
3129 | if (expect_true (pending)) |
3582 | if (expect_true (pending)) |
… | |
… | |
3162 | } |
3615 | } |
3163 | |
3616 | |
3164 | /*****************************************************************************/ |
3617 | /*****************************************************************************/ |
3165 | |
3618 | |
3166 | void noinline |
3619 | void noinline |
3167 | ev_io_start (EV_P_ ev_io *w) |
3620 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
3168 | { |
3621 | { |
3169 | int fd = w->fd; |
3622 | int fd = w->fd; |
3170 | |
3623 | |
3171 | if (expect_false (ev_is_active (w))) |
3624 | if (expect_false (ev_is_active (w))) |
3172 | return; |
3625 | return; |
… | |
… | |
3178 | |
3631 | |
3179 | ev_start (EV_A_ (W)w, 1); |
3632 | ev_start (EV_A_ (W)w, 1); |
3180 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3633 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3181 | wlist_add (&anfds[fd].head, (WL)w); |
3634 | wlist_add (&anfds[fd].head, (WL)w); |
3182 | |
3635 | |
|
|
3636 | /* common bug, apparently */ |
|
|
3637 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
|
|
3638 | |
3183 | 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); |
3184 | w->events &= ~EV__IOFDSET; |
3640 | w->events &= ~EV__IOFDSET; |
3185 | |
3641 | |
3186 | EV_FREQUENT_CHECK; |
3642 | EV_FREQUENT_CHECK; |
3187 | } |
3643 | } |
3188 | |
3644 | |
3189 | void noinline |
3645 | void noinline |
3190 | ev_io_stop (EV_P_ ev_io *w) |
3646 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
3191 | { |
3647 | { |
3192 | clear_pending (EV_A_ (W)w); |
3648 | clear_pending (EV_A_ (W)w); |
3193 | if (expect_false (!ev_is_active (w))) |
3649 | if (expect_false (!ev_is_active (w))) |
3194 | return; |
3650 | return; |
3195 | |
3651 | |
… | |
… | |
3204 | |
3660 | |
3205 | EV_FREQUENT_CHECK; |
3661 | EV_FREQUENT_CHECK; |
3206 | } |
3662 | } |
3207 | |
3663 | |
3208 | void noinline |
3664 | void noinline |
3209 | ev_timer_start (EV_P_ ev_timer *w) |
3665 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
3210 | { |
3666 | { |
3211 | if (expect_false (ev_is_active (w))) |
3667 | if (expect_false (ev_is_active (w))) |
3212 | return; |
3668 | return; |
3213 | |
3669 | |
3214 | ev_at (w) += mn_now; |
3670 | ev_at (w) += mn_now; |
… | |
… | |
3228 | |
3684 | |
3229 | /*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));*/ |
3230 | } |
3686 | } |
3231 | |
3687 | |
3232 | void noinline |
3688 | void noinline |
3233 | ev_timer_stop (EV_P_ ev_timer *w) |
3689 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
3234 | { |
3690 | { |
3235 | clear_pending (EV_A_ (W)w); |
3691 | clear_pending (EV_A_ (W)w); |
3236 | if (expect_false (!ev_is_active (w))) |
3692 | if (expect_false (!ev_is_active (w))) |
3237 | return; |
3693 | return; |
3238 | |
3694 | |
… | |
… | |
3258 | |
3714 | |
3259 | EV_FREQUENT_CHECK; |
3715 | EV_FREQUENT_CHECK; |
3260 | } |
3716 | } |
3261 | |
3717 | |
3262 | void noinline |
3718 | void noinline |
3263 | ev_timer_again (EV_P_ ev_timer *w) |
3719 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
3264 | { |
3720 | { |
3265 | EV_FREQUENT_CHECK; |
3721 | EV_FREQUENT_CHECK; |
|
|
3722 | |
|
|
3723 | clear_pending (EV_A_ (W)w); |
3266 | |
3724 | |
3267 | if (ev_is_active (w)) |
3725 | if (ev_is_active (w)) |
3268 | { |
3726 | { |
3269 | if (w->repeat) |
3727 | if (w->repeat) |
3270 | { |
3728 | { |
… | |
… | |
3283 | |
3741 | |
3284 | EV_FREQUENT_CHECK; |
3742 | EV_FREQUENT_CHECK; |
3285 | } |
3743 | } |
3286 | |
3744 | |
3287 | ev_tstamp |
3745 | ev_tstamp |
3288 | ev_timer_remaining (EV_P_ ev_timer *w) |
3746 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
3289 | { |
3747 | { |
3290 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3748 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3291 | } |
3749 | } |
3292 | |
3750 | |
3293 | #if EV_PERIODIC_ENABLE |
3751 | #if EV_PERIODIC_ENABLE |
3294 | void noinline |
3752 | void noinline |
3295 | ev_periodic_start (EV_P_ ev_periodic *w) |
3753 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
3296 | { |
3754 | { |
3297 | if (expect_false (ev_is_active (w))) |
3755 | if (expect_false (ev_is_active (w))) |
3298 | return; |
3756 | return; |
3299 | |
3757 | |
3300 | if (w->reschedule_cb) |
3758 | if (w->reschedule_cb) |
… | |
… | |
3320 | |
3778 | |
3321 | /*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));*/ |
3322 | } |
3780 | } |
3323 | |
3781 | |
3324 | void noinline |
3782 | void noinline |
3325 | ev_periodic_stop (EV_P_ ev_periodic *w) |
3783 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
3326 | { |
3784 | { |
3327 | clear_pending (EV_A_ (W)w); |
3785 | clear_pending (EV_A_ (W)w); |
3328 | if (expect_false (!ev_is_active (w))) |
3786 | if (expect_false (!ev_is_active (w))) |
3329 | return; |
3787 | return; |
3330 | |
3788 | |
… | |
… | |
3348 | |
3806 | |
3349 | EV_FREQUENT_CHECK; |
3807 | EV_FREQUENT_CHECK; |
3350 | } |
3808 | } |
3351 | |
3809 | |
3352 | void noinline |
3810 | void noinline |
3353 | ev_periodic_again (EV_P_ ev_periodic *w) |
3811 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
3354 | { |
3812 | { |
3355 | /* TODO: use adjustheap and recalculation */ |
3813 | /* TODO: use adjustheap and recalculation */ |
3356 | ev_periodic_stop (EV_A_ w); |
3814 | ev_periodic_stop (EV_A_ w); |
3357 | ev_periodic_start (EV_A_ w); |
3815 | ev_periodic_start (EV_A_ w); |
3358 | } |
3816 | } |
… | |
… | |
3363 | #endif |
3821 | #endif |
3364 | |
3822 | |
3365 | #if EV_SIGNAL_ENABLE |
3823 | #if EV_SIGNAL_ENABLE |
3366 | |
3824 | |
3367 | void noinline |
3825 | void noinline |
3368 | ev_signal_start (EV_P_ ev_signal *w) |
3826 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
3369 | { |
3827 | { |
3370 | if (expect_false (ev_is_active (w))) |
3828 | if (expect_false (ev_is_active (w))) |
3371 | return; |
3829 | return; |
3372 | |
3830 | |
3373 | 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)); |
… | |
… | |
3375 | #if EV_MULTIPLICITY |
3833 | #if EV_MULTIPLICITY |
3376 | 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", |
3377 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3835 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3378 | |
3836 | |
3379 | signals [w->signum - 1].loop = EV_A; |
3837 | signals [w->signum - 1].loop = EV_A; |
|
|
3838 | ECB_MEMORY_FENCE_RELEASE; |
3380 | #endif |
3839 | #endif |
3381 | |
3840 | |
3382 | EV_FREQUENT_CHECK; |
3841 | EV_FREQUENT_CHECK; |
3383 | |
3842 | |
3384 | #if EV_USE_SIGNALFD |
3843 | #if EV_USE_SIGNALFD |
… | |
… | |
3444 | |
3903 | |
3445 | EV_FREQUENT_CHECK; |
3904 | EV_FREQUENT_CHECK; |
3446 | } |
3905 | } |
3447 | |
3906 | |
3448 | void noinline |
3907 | void noinline |
3449 | ev_signal_stop (EV_P_ ev_signal *w) |
3908 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
3450 | { |
3909 | { |
3451 | clear_pending (EV_A_ (W)w); |
3910 | clear_pending (EV_A_ (W)w); |
3452 | if (expect_false (!ev_is_active (w))) |
3911 | if (expect_false (!ev_is_active (w))) |
3453 | return; |
3912 | return; |
3454 | |
3913 | |
… | |
… | |
3485 | #endif |
3944 | #endif |
3486 | |
3945 | |
3487 | #if EV_CHILD_ENABLE |
3946 | #if EV_CHILD_ENABLE |
3488 | |
3947 | |
3489 | void |
3948 | void |
3490 | ev_child_start (EV_P_ ev_child *w) |
3949 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
3491 | { |
3950 | { |
3492 | #if EV_MULTIPLICITY |
3951 | #if EV_MULTIPLICITY |
3493 | 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)); |
3494 | #endif |
3953 | #endif |
3495 | if (expect_false (ev_is_active (w))) |
3954 | if (expect_false (ev_is_active (w))) |
… | |
… | |
3502 | |
3961 | |
3503 | EV_FREQUENT_CHECK; |
3962 | EV_FREQUENT_CHECK; |
3504 | } |
3963 | } |
3505 | |
3964 | |
3506 | void |
3965 | void |
3507 | ev_child_stop (EV_P_ ev_child *w) |
3966 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
3508 | { |
3967 | { |
3509 | clear_pending (EV_A_ (W)w); |
3968 | clear_pending (EV_A_ (W)w); |
3510 | if (expect_false (!ev_is_active (w))) |
3969 | if (expect_false (!ev_is_active (w))) |
3511 | return; |
3970 | return; |
3512 | |
3971 | |
… | |
… | |
3539 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3998 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3540 | |
3999 | |
3541 | static void noinline |
4000 | static void noinline |
3542 | infy_add (EV_P_ ev_stat *w) |
4001 | infy_add (EV_P_ ev_stat *w) |
3543 | { |
4002 | { |
3544 | 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); |
3545 | |
4007 | |
3546 | if (w->wd >= 0) |
4008 | if (w->wd >= 0) |
3547 | { |
4009 | { |
3548 | struct statfs sfs; |
4010 | struct statfs sfs; |
3549 | |
4011 | |
… | |
… | |
3553 | |
4015 | |
3554 | if (!fs_2625) |
4016 | if (!fs_2625) |
3555 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
4017 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3556 | else if (!statfs (w->path, &sfs) |
4018 | else if (!statfs (w->path, &sfs) |
3557 | && (sfs.f_type == 0x1373 /* devfs */ |
4019 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
4020 | || sfs.f_type == 0x4006 /* fat */ |
|
|
4021 | || sfs.f_type == 0x4d44 /* msdos */ |
3558 | || 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 */ |
3559 | || sfs.f_type == 0x3153464a /* jfs */ |
4026 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
4027 | || sfs.f_type == 0x9123683e /* btrfs */ |
3560 | || sfs.f_type == 0x52654973 /* reiser3 */ |
4028 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3561 | || sfs.f_type == 0x01021994 /* tempfs */ |
4029 | || sfs.f_type == 0x01021994 /* tmpfs */ |
3562 | || sfs.f_type == 0x58465342 /* xfs */)) |
4030 | || sfs.f_type == 0x58465342 /* xfs */)) |
3563 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
4031 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3564 | else |
4032 | else |
3565 | 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 */ |
3566 | } |
4034 | } |
… | |
… | |
3679 | } |
4147 | } |
3680 | |
4148 | |
3681 | inline_size int |
4149 | inline_size int |
3682 | infy_newfd (void) |
4150 | infy_newfd (void) |
3683 | { |
4151 | { |
3684 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
4152 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
3685 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
4153 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3686 | if (fd >= 0) |
4154 | if (fd >= 0) |
3687 | return fd; |
4155 | return fd; |
3688 | #endif |
4156 | #endif |
3689 | return inotify_init (); |
4157 | return inotify_init (); |
… | |
… | |
3764 | #else |
4232 | #else |
3765 | # define EV_LSTAT(p,b) lstat (p, b) |
4233 | # define EV_LSTAT(p,b) lstat (p, b) |
3766 | #endif |
4234 | #endif |
3767 | |
4235 | |
3768 | void |
4236 | void |
3769 | ev_stat_stat (EV_P_ ev_stat *w) |
4237 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
3770 | { |
4238 | { |
3771 | if (lstat (w->path, &w->attr) < 0) |
4239 | if (lstat (w->path, &w->attr) < 0) |
3772 | w->attr.st_nlink = 0; |
4240 | w->attr.st_nlink = 0; |
3773 | else if (!w->attr.st_nlink) |
4241 | else if (!w->attr.st_nlink) |
3774 | w->attr.st_nlink = 1; |
4242 | w->attr.st_nlink = 1; |
… | |
… | |
3813 | ev_feed_event (EV_A_ w, EV_STAT); |
4281 | ev_feed_event (EV_A_ w, EV_STAT); |
3814 | } |
4282 | } |
3815 | } |
4283 | } |
3816 | |
4284 | |
3817 | void |
4285 | void |
3818 | ev_stat_start (EV_P_ ev_stat *w) |
4286 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
3819 | { |
4287 | { |
3820 | if (expect_false (ev_is_active (w))) |
4288 | if (expect_false (ev_is_active (w))) |
3821 | return; |
4289 | return; |
3822 | |
4290 | |
3823 | ev_stat_stat (EV_A_ w); |
4291 | ev_stat_stat (EV_A_ w); |
… | |
… | |
3844 | |
4312 | |
3845 | EV_FREQUENT_CHECK; |
4313 | EV_FREQUENT_CHECK; |
3846 | } |
4314 | } |
3847 | |
4315 | |
3848 | void |
4316 | void |
3849 | ev_stat_stop (EV_P_ ev_stat *w) |
4317 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
3850 | { |
4318 | { |
3851 | clear_pending (EV_A_ (W)w); |
4319 | clear_pending (EV_A_ (W)w); |
3852 | if (expect_false (!ev_is_active (w))) |
4320 | if (expect_false (!ev_is_active (w))) |
3853 | return; |
4321 | return; |
3854 | |
4322 | |
… | |
… | |
3870 | } |
4338 | } |
3871 | #endif |
4339 | #endif |
3872 | |
4340 | |
3873 | #if EV_IDLE_ENABLE |
4341 | #if EV_IDLE_ENABLE |
3874 | void |
4342 | void |
3875 | ev_idle_start (EV_P_ ev_idle *w) |
4343 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
3876 | { |
4344 | { |
3877 | if (expect_false (ev_is_active (w))) |
4345 | if (expect_false (ev_is_active (w))) |
3878 | return; |
4346 | return; |
3879 | |
4347 | |
3880 | pri_adjust (EV_A_ (W)w); |
4348 | pri_adjust (EV_A_ (W)w); |
… | |
… | |
3893 | |
4361 | |
3894 | EV_FREQUENT_CHECK; |
4362 | EV_FREQUENT_CHECK; |
3895 | } |
4363 | } |
3896 | |
4364 | |
3897 | void |
4365 | void |
3898 | ev_idle_stop (EV_P_ ev_idle *w) |
4366 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
3899 | { |
4367 | { |
3900 | clear_pending (EV_A_ (W)w); |
4368 | clear_pending (EV_A_ (W)w); |
3901 | if (expect_false (!ev_is_active (w))) |
4369 | if (expect_false (!ev_is_active (w))) |
3902 | return; |
4370 | return; |
3903 | |
4371 | |
… | |
… | |
3917 | } |
4385 | } |
3918 | #endif |
4386 | #endif |
3919 | |
4387 | |
3920 | #if EV_PREPARE_ENABLE |
4388 | #if EV_PREPARE_ENABLE |
3921 | void |
4389 | void |
3922 | ev_prepare_start (EV_P_ ev_prepare *w) |
4390 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
3923 | { |
4391 | { |
3924 | if (expect_false (ev_is_active (w))) |
4392 | if (expect_false (ev_is_active (w))) |
3925 | return; |
4393 | return; |
3926 | |
4394 | |
3927 | EV_FREQUENT_CHECK; |
4395 | EV_FREQUENT_CHECK; |
… | |
… | |
3932 | |
4400 | |
3933 | EV_FREQUENT_CHECK; |
4401 | EV_FREQUENT_CHECK; |
3934 | } |
4402 | } |
3935 | |
4403 | |
3936 | void |
4404 | void |
3937 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4405 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
3938 | { |
4406 | { |
3939 | clear_pending (EV_A_ (W)w); |
4407 | clear_pending (EV_A_ (W)w); |
3940 | if (expect_false (!ev_is_active (w))) |
4408 | if (expect_false (!ev_is_active (w))) |
3941 | return; |
4409 | return; |
3942 | |
4410 | |
… | |
… | |
3955 | } |
4423 | } |
3956 | #endif |
4424 | #endif |
3957 | |
4425 | |
3958 | #if EV_CHECK_ENABLE |
4426 | #if EV_CHECK_ENABLE |
3959 | void |
4427 | void |
3960 | ev_check_start (EV_P_ ev_check *w) |
4428 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
3961 | { |
4429 | { |
3962 | if (expect_false (ev_is_active (w))) |
4430 | if (expect_false (ev_is_active (w))) |
3963 | return; |
4431 | return; |
3964 | |
4432 | |
3965 | EV_FREQUENT_CHECK; |
4433 | EV_FREQUENT_CHECK; |
… | |
… | |
3970 | |
4438 | |
3971 | EV_FREQUENT_CHECK; |
4439 | EV_FREQUENT_CHECK; |
3972 | } |
4440 | } |
3973 | |
4441 | |
3974 | void |
4442 | void |
3975 | ev_check_stop (EV_P_ ev_check *w) |
4443 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
3976 | { |
4444 | { |
3977 | clear_pending (EV_A_ (W)w); |
4445 | clear_pending (EV_A_ (W)w); |
3978 | if (expect_false (!ev_is_active (w))) |
4446 | if (expect_false (!ev_is_active (w))) |
3979 | return; |
4447 | return; |
3980 | |
4448 | |
… | |
… | |
3993 | } |
4461 | } |
3994 | #endif |
4462 | #endif |
3995 | |
4463 | |
3996 | #if EV_EMBED_ENABLE |
4464 | #if EV_EMBED_ENABLE |
3997 | void noinline |
4465 | void noinline |
3998 | ev_embed_sweep (EV_P_ ev_embed *w) |
4466 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
3999 | { |
4467 | { |
4000 | ev_run (w->other, EVRUN_NOWAIT); |
4468 | ev_run (w->other, EVRUN_NOWAIT); |
4001 | } |
4469 | } |
4002 | |
4470 | |
4003 | static void |
4471 | static void |
… | |
… | |
4051 | ev_idle_stop (EV_A_ idle); |
4519 | ev_idle_stop (EV_A_ idle); |
4052 | } |
4520 | } |
4053 | #endif |
4521 | #endif |
4054 | |
4522 | |
4055 | void |
4523 | void |
4056 | ev_embed_start (EV_P_ ev_embed *w) |
4524 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
4057 | { |
4525 | { |
4058 | if (expect_false (ev_is_active (w))) |
4526 | if (expect_false (ev_is_active (w))) |
4059 | return; |
4527 | return; |
4060 | |
4528 | |
4061 | { |
4529 | { |
… | |
… | |
4082 | |
4550 | |
4083 | EV_FREQUENT_CHECK; |
4551 | EV_FREQUENT_CHECK; |
4084 | } |
4552 | } |
4085 | |
4553 | |
4086 | void |
4554 | void |
4087 | ev_embed_stop (EV_P_ ev_embed *w) |
4555 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
4088 | { |
4556 | { |
4089 | clear_pending (EV_A_ (W)w); |
4557 | clear_pending (EV_A_ (W)w); |
4090 | if (expect_false (!ev_is_active (w))) |
4558 | if (expect_false (!ev_is_active (w))) |
4091 | return; |
4559 | return; |
4092 | |
4560 | |
… | |
… | |
4102 | } |
4570 | } |
4103 | #endif |
4571 | #endif |
4104 | |
4572 | |
4105 | #if EV_FORK_ENABLE |
4573 | #if EV_FORK_ENABLE |
4106 | void |
4574 | void |
4107 | ev_fork_start (EV_P_ ev_fork *w) |
4575 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
4108 | { |
4576 | { |
4109 | if (expect_false (ev_is_active (w))) |
4577 | if (expect_false (ev_is_active (w))) |
4110 | return; |
4578 | return; |
4111 | |
4579 | |
4112 | EV_FREQUENT_CHECK; |
4580 | EV_FREQUENT_CHECK; |
… | |
… | |
4117 | |
4585 | |
4118 | EV_FREQUENT_CHECK; |
4586 | EV_FREQUENT_CHECK; |
4119 | } |
4587 | } |
4120 | |
4588 | |
4121 | void |
4589 | void |
4122 | ev_fork_stop (EV_P_ ev_fork *w) |
4590 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
4123 | { |
4591 | { |
4124 | clear_pending (EV_A_ (W)w); |
4592 | clear_pending (EV_A_ (W)w); |
4125 | if (expect_false (!ev_is_active (w))) |
4593 | if (expect_false (!ev_is_active (w))) |
4126 | return; |
4594 | return; |
4127 | |
4595 | |
… | |
… | |
4140 | } |
4608 | } |
4141 | #endif |
4609 | #endif |
4142 | |
4610 | |
4143 | #if EV_CLEANUP_ENABLE |
4611 | #if EV_CLEANUP_ENABLE |
4144 | void |
4612 | void |
4145 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
4613 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
4146 | { |
4614 | { |
4147 | if (expect_false (ev_is_active (w))) |
4615 | if (expect_false (ev_is_active (w))) |
4148 | return; |
4616 | return; |
4149 | |
4617 | |
4150 | EV_FREQUENT_CHECK; |
4618 | EV_FREQUENT_CHECK; |
… | |
… | |
4157 | ev_unref (EV_A); |
4625 | ev_unref (EV_A); |
4158 | EV_FREQUENT_CHECK; |
4626 | EV_FREQUENT_CHECK; |
4159 | } |
4627 | } |
4160 | |
4628 | |
4161 | void |
4629 | void |
4162 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
4630 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
4163 | { |
4631 | { |
4164 | clear_pending (EV_A_ (W)w); |
4632 | clear_pending (EV_A_ (W)w); |
4165 | if (expect_false (!ev_is_active (w))) |
4633 | if (expect_false (!ev_is_active (w))) |
4166 | return; |
4634 | return; |
4167 | |
4635 | |
… | |
… | |
4181 | } |
4649 | } |
4182 | #endif |
4650 | #endif |
4183 | |
4651 | |
4184 | #if EV_ASYNC_ENABLE |
4652 | #if EV_ASYNC_ENABLE |
4185 | void |
4653 | void |
4186 | ev_async_start (EV_P_ ev_async *w) |
4654 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
4187 | { |
4655 | { |
4188 | if (expect_false (ev_is_active (w))) |
4656 | if (expect_false (ev_is_active (w))) |
4189 | return; |
4657 | return; |
4190 | |
4658 | |
4191 | w->sent = 0; |
4659 | w->sent = 0; |
… | |
… | |
4200 | |
4668 | |
4201 | EV_FREQUENT_CHECK; |
4669 | EV_FREQUENT_CHECK; |
4202 | } |
4670 | } |
4203 | |
4671 | |
4204 | void |
4672 | void |
4205 | ev_async_stop (EV_P_ ev_async *w) |
4673 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
4206 | { |
4674 | { |
4207 | clear_pending (EV_A_ (W)w); |
4675 | clear_pending (EV_A_ (W)w); |
4208 | if (expect_false (!ev_is_active (w))) |
4676 | if (expect_false (!ev_is_active (w))) |
4209 | return; |
4677 | return; |
4210 | |
4678 | |
… | |
… | |
4221 | |
4689 | |
4222 | EV_FREQUENT_CHECK; |
4690 | EV_FREQUENT_CHECK; |
4223 | } |
4691 | } |
4224 | |
4692 | |
4225 | void |
4693 | void |
4226 | ev_async_send (EV_P_ ev_async *w) |
4694 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
4227 | { |
4695 | { |
4228 | w->sent = 1; |
4696 | w->sent = 1; |
4229 | evpipe_write (EV_A_ &async_pending); |
4697 | evpipe_write (EV_A_ &async_pending); |
4230 | } |
4698 | } |
4231 | #endif |
4699 | #endif |
… | |
… | |
4268 | |
4736 | |
4269 | 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)); |
4270 | } |
4738 | } |
4271 | |
4739 | |
4272 | void |
4740 | void |
4273 | 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 |
4274 | { |
4742 | { |
4275 | 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)); |
4276 | |
4744 | |
4277 | if (expect_false (!once)) |
4745 | if (expect_false (!once)) |
4278 | { |
4746 | { |
… | |
… | |
4300 | |
4768 | |
4301 | /*****************************************************************************/ |
4769 | /*****************************************************************************/ |
4302 | |
4770 | |
4303 | #if EV_WALK_ENABLE |
4771 | #if EV_WALK_ENABLE |
4304 | void ecb_cold |
4772 | void ecb_cold |
4305 | 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 |
4306 | { |
4774 | { |
4307 | int i, j; |
4775 | int i, j; |
4308 | ev_watcher_list *wl, *wn; |
4776 | ev_watcher_list *wl, *wn; |
4309 | |
4777 | |
4310 | if (types & (EV_IO | EV_EMBED)) |
4778 | if (types & (EV_IO | EV_EMBED)) |
… | |
… | |
4416 | |
4884 | |
4417 | #if EV_MULTIPLICITY |
4885 | #if EV_MULTIPLICITY |
4418 | #include "ev_wrap.h" |
4886 | #include "ev_wrap.h" |
4419 | #endif |
4887 | #endif |
4420 | |
4888 | |
4421 | EV_CPP(}) |
|
|
4422 | |
|
|