1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
11 | * this list of conditions and the following disclaimer. |
11 | * this list of conditions and the following disclaimer. |
12 | * |
12 | * |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in the |
14 | * notice, this list of conditions and the following disclaimer in the |
15 | * documentation and/or other materials provided with the distribution. |
15 | * documentation and/or other materials provided with the distribution. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
… | |
… | |
43 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
44 | # else |
44 | # else |
45 | # include "config.h" |
45 | # include "config.h" |
46 | # endif |
46 | # endif |
47 | |
47 | |
|
|
48 | #if HAVE_FLOOR |
|
|
49 | # ifndef EV_USE_FLOOR |
|
|
50 | # define EV_USE_FLOOR 1 |
|
|
51 | # endif |
|
|
52 | #endif |
|
|
53 | |
48 | # if HAVE_CLOCK_SYSCALL |
54 | # if HAVE_CLOCK_SYSCALL |
49 | # ifndef EV_USE_CLOCK_SYSCALL |
55 | # ifndef EV_USE_CLOCK_SYSCALL |
50 | # define EV_USE_CLOCK_SYSCALL 1 |
56 | # define EV_USE_CLOCK_SYSCALL 1 |
51 | # ifndef EV_USE_REALTIME |
57 | # ifndef EV_USE_REALTIME |
52 | # define EV_USE_REALTIME 0 |
58 | # define EV_USE_REALTIME 0 |
53 | # endif |
59 | # endif |
54 | # ifndef EV_USE_MONOTONIC |
60 | # ifndef EV_USE_MONOTONIC |
55 | # define EV_USE_MONOTONIC 1 |
61 | # define EV_USE_MONOTONIC 1 |
56 | # endif |
62 | # endif |
57 | # endif |
63 | # endif |
58 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
64 | # elif !defined EV_USE_CLOCK_SYSCALL |
59 | # define EV_USE_CLOCK_SYSCALL 0 |
65 | # define EV_USE_CLOCK_SYSCALL 0 |
60 | # endif |
66 | # endif |
61 | |
67 | |
62 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
63 | # ifndef EV_USE_MONOTONIC |
69 | # ifndef EV_USE_MONOTONIC |
… | |
… | |
156 | # define EV_USE_EVENTFD 0 |
162 | # define EV_USE_EVENTFD 0 |
157 | # endif |
163 | # endif |
158 | |
164 | |
159 | #endif |
165 | #endif |
160 | |
166 | |
161 | #include <math.h> |
|
|
162 | #include <stdlib.h> |
167 | #include <stdlib.h> |
163 | #include <string.h> |
168 | #include <string.h> |
164 | #include <fcntl.h> |
169 | #include <fcntl.h> |
165 | #include <stddef.h> |
170 | #include <stddef.h> |
166 | |
171 | |
… | |
… | |
178 | # include EV_H |
183 | # include EV_H |
179 | #else |
184 | #else |
180 | # include "ev.h" |
185 | # include "ev.h" |
181 | #endif |
186 | #endif |
182 | |
187 | |
183 | EV_CPP(extern "C" {) |
188 | #if EV_NO_THREADS |
|
|
189 | # undef EV_NO_SMP |
|
|
190 | # define EV_NO_SMP 1 |
|
|
191 | # undef ECB_NO_THREADS |
|
|
192 | # define ECB_NO_THREADS 1 |
|
|
193 | #endif |
|
|
194 | #if EV_NO_SMP |
|
|
195 | # undef EV_NO_SMP |
|
|
196 | # define ECB_NO_SMP 1 |
|
|
197 | #endif |
184 | |
198 | |
185 | #ifndef _WIN32 |
199 | #ifndef _WIN32 |
186 | # include <sys/time.h> |
200 | # include <sys/time.h> |
187 | # include <sys/wait.h> |
201 | # include <sys/wait.h> |
188 | # include <unistd.h> |
202 | # include <unistd.h> |
189 | #else |
203 | #else |
190 | # include <io.h> |
204 | # include <io.h> |
191 | # define WIN32_LEAN_AND_MEAN |
205 | # define WIN32_LEAN_AND_MEAN |
|
|
206 | # include <winsock2.h> |
192 | # include <windows.h> |
207 | # include <windows.h> |
193 | # ifndef EV_SELECT_IS_WINSOCKET |
208 | # ifndef EV_SELECT_IS_WINSOCKET |
194 | # define EV_SELECT_IS_WINSOCKET 1 |
209 | # define EV_SELECT_IS_WINSOCKET 1 |
195 | # endif |
210 | # endif |
196 | # undef EV_AVOID_STDIO |
211 | # undef EV_AVOID_STDIO |
… | |
… | |
205 | #define _DARWIN_UNLIMITED_SELECT 1 |
220 | #define _DARWIN_UNLIMITED_SELECT 1 |
206 | |
221 | |
207 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
222 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
208 | |
223 | |
209 | /* try to deduce the maximum number of signals on this platform */ |
224 | /* try to deduce the maximum number of signals on this platform */ |
210 | #if defined (EV_NSIG) |
225 | #if defined EV_NSIG |
211 | /* use what's provided */ |
226 | /* use what's provided */ |
212 | #elif defined (NSIG) |
227 | #elif defined NSIG |
213 | # define EV_NSIG (NSIG) |
228 | # define EV_NSIG (NSIG) |
214 | #elif defined(_NSIG) |
229 | #elif defined _NSIG |
215 | # define EV_NSIG (_NSIG) |
230 | # define EV_NSIG (_NSIG) |
216 | #elif defined (SIGMAX) |
231 | #elif defined SIGMAX |
217 | # define EV_NSIG (SIGMAX+1) |
232 | # define EV_NSIG (SIGMAX+1) |
218 | #elif defined (SIG_MAX) |
233 | #elif defined SIG_MAX |
219 | # define EV_NSIG (SIG_MAX+1) |
234 | # define EV_NSIG (SIG_MAX+1) |
220 | #elif defined (_SIG_MAX) |
235 | #elif defined _SIG_MAX |
221 | # define EV_NSIG (_SIG_MAX+1) |
236 | # define EV_NSIG (_SIG_MAX+1) |
222 | #elif defined (MAXSIG) |
237 | #elif defined MAXSIG |
223 | # define EV_NSIG (MAXSIG+1) |
238 | # define EV_NSIG (MAXSIG+1) |
224 | #elif defined (MAX_SIG) |
239 | #elif defined MAX_SIG |
225 | # define EV_NSIG (MAX_SIG+1) |
240 | # define EV_NSIG (MAX_SIG+1) |
226 | #elif defined (SIGARRAYSIZE) |
241 | #elif defined SIGARRAYSIZE |
227 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
228 | #elif defined (_sys_nsig) |
243 | #elif defined _sys_nsig |
229 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
230 | #else |
245 | #else |
231 | # error "unable to find value for NSIG, please report" |
246 | # error "unable to find value for NSIG, please report" |
232 | /* to make it compile regardless, just remove the above line, */ |
247 | /* to make it compile regardless, just remove the above line, */ |
233 | /* but consider reporting it, too! :) */ |
248 | /* but consider reporting it, too! :) */ |
234 | # define EV_NSIG 65 |
249 | # define EV_NSIG 65 |
235 | #endif |
250 | #endif |
236 | |
251 | |
|
|
252 | #ifndef EV_USE_FLOOR |
|
|
253 | # define EV_USE_FLOOR 0 |
|
|
254 | #endif |
|
|
255 | |
237 | #ifndef EV_USE_CLOCK_SYSCALL |
256 | #ifndef EV_USE_CLOCK_SYSCALL |
238 | # if __linux && __GLIBC__ >= 2 |
257 | # if __linux && __GLIBC__ >= 2 |
239 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
258 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
240 | # else |
259 | # else |
241 | # define EV_USE_CLOCK_SYSCALL 0 |
260 | # define EV_USE_CLOCK_SYSCALL 0 |
242 | # endif |
261 | # endif |
243 | #endif |
262 | #endif |
244 | |
263 | |
245 | #ifndef EV_USE_MONOTONIC |
264 | #ifndef EV_USE_MONOTONIC |
246 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
265 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
247 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
266 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
248 | # else |
267 | # else |
249 | # define EV_USE_MONOTONIC 0 |
268 | # define EV_USE_MONOTONIC 0 |
250 | # endif |
269 | # endif |
251 | #endif |
270 | #endif |
… | |
… | |
341 | #endif |
360 | #endif |
342 | |
361 | |
343 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
362 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
344 | /* which makes programs even slower. might work on other unices, too. */ |
363 | /* which makes programs even slower. might work on other unices, too. */ |
345 | #if EV_USE_CLOCK_SYSCALL |
364 | #if EV_USE_CLOCK_SYSCALL |
346 | # include <syscall.h> |
365 | # include <sys/syscall.h> |
347 | # ifdef SYS_clock_gettime |
366 | # ifdef SYS_clock_gettime |
348 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
367 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
349 | # undef EV_USE_MONOTONIC |
368 | # undef EV_USE_MONOTONIC |
350 | # define EV_USE_MONOTONIC 1 |
369 | # define EV_USE_MONOTONIC 1 |
351 | # else |
370 | # else |
… | |
… | |
376 | # undef EV_USE_INOTIFY |
395 | # undef EV_USE_INOTIFY |
377 | # define EV_USE_INOTIFY 0 |
396 | # define EV_USE_INOTIFY 0 |
378 | #endif |
397 | #endif |
379 | |
398 | |
380 | #if !EV_USE_NANOSLEEP |
399 | #if !EV_USE_NANOSLEEP |
381 | # ifndef _WIN32 |
400 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
401 | # if !defined _WIN32 && !defined __hpux |
382 | # include <sys/select.h> |
402 | # include <sys/select.h> |
383 | # endif |
403 | # endif |
384 | #endif |
404 | #endif |
385 | |
405 | |
386 | #if EV_USE_INOTIFY |
406 | #if EV_USE_INOTIFY |
… | |
… | |
389 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
409 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
390 | # ifndef IN_DONT_FOLLOW |
410 | # ifndef IN_DONT_FOLLOW |
391 | # undef EV_USE_INOTIFY |
411 | # undef EV_USE_INOTIFY |
392 | # define EV_USE_INOTIFY 0 |
412 | # define EV_USE_INOTIFY 0 |
393 | # endif |
413 | # endif |
394 | #endif |
|
|
395 | |
|
|
396 | #if EV_SELECT_IS_WINSOCKET |
|
|
397 | # include <winsock.h> |
|
|
398 | #endif |
414 | #endif |
399 | |
415 | |
400 | #if EV_USE_EVENTFD |
416 | #if EV_USE_EVENTFD |
401 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
417 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
402 | # include <stdint.h> |
418 | # include <stdint.h> |
… | |
… | |
442 | #else |
458 | #else |
443 | # define EV_FREQUENT_CHECK do { } while (0) |
459 | # define EV_FREQUENT_CHECK do { } while (0) |
444 | #endif |
460 | #endif |
445 | |
461 | |
446 | /* |
462 | /* |
447 | * This is used to avoid floating point rounding problems. |
463 | * This is used to work around floating point rounding problems. |
448 | * It is added to ev_rt_now when scheduling periodics |
|
|
449 | * to ensure progress, time-wise, even when rounding |
|
|
450 | * errors are against us. |
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|
451 | * This value is good at least till the year 4000. |
464 | * This value is good at least till the year 4000. |
452 | * Better solutions welcome. |
|
|
453 | */ |
465 | */ |
454 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
466 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
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|
467 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
455 | |
468 | |
456 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
469 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
457 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
470 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
458 | |
471 | |
459 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
472 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
460 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
473 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
461 | |
474 | |
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|
475 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
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476 | /* ECB.H BEGIN */ |
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477 | /* |
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478 | * libecb - http://software.schmorp.de/pkg/libecb |
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479 | * |
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480 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
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481 | * Copyright (©) 2011 Emanuele Giaquinta |
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482 | * All rights reserved. |
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483 | * |
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484 | * Redistribution and use in source and binary forms, with or without modifica- |
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485 | * tion, are permitted provided that the following conditions are met: |
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486 | * |
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487 | * 1. Redistributions of source code must retain the above copyright notice, |
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|
488 | * this list of conditions and the following disclaimer. |
|
|
489 | * |
|
|
490 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
491 | * notice, this list of conditions and the following disclaimer in the |
|
|
492 | * documentation and/or other materials provided with the distribution. |
|
|
493 | * |
|
|
494 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
495 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
496 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
497 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
498 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
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499 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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500 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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|
501 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
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502 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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|
503 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
504 | */ |
|
|
505 | |
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|
506 | #ifndef ECB_H |
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|
507 | #define ECB_H |
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|
508 | |
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|
509 | #ifdef _WIN32 |
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|
510 | typedef signed char int8_t; |
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|
511 | typedef unsigned char uint8_t; |
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|
512 | typedef signed short int16_t; |
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|
513 | typedef unsigned short uint16_t; |
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|
514 | typedef signed int int32_t; |
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515 | typedef unsigned int uint32_t; |
462 | #if __GNUC__ >= 4 |
516 | #if __GNUC__ |
463 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
517 | typedef signed long long int64_t; |
464 | # define noinline __attribute__ ((noinline)) |
518 | typedef unsigned long long uint64_t; |
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|
519 | #else /* _MSC_VER || __BORLANDC__ */ |
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520 | typedef signed __int64 int64_t; |
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|
521 | typedef unsigned __int64 uint64_t; |
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|
522 | #endif |
465 | #else |
523 | #else |
466 | # define expect(expr,value) (expr) |
524 | #include <inttypes.h> |
467 | # define noinline |
|
|
468 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
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|
469 | # define inline |
|
|
470 | # endif |
525 | #endif |
|
|
526 | |
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527 | /* many compilers define _GNUC_ to some versions but then only implement |
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528 | * what their idiot authors think are the "more important" extensions, |
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529 | * causing enormous grief in return for some better fake benchmark numbers. |
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530 | * or so. |
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|
531 | * we try to detect these and simply assume they are not gcc - if they have |
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532 | * an issue with that they should have done it right in the first place. |
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|
533 | */ |
|
|
534 | #ifndef ECB_GCC_VERSION |
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535 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
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|
536 | #define ECB_GCC_VERSION(major,minor) 0 |
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|
537 | #else |
|
|
538 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
471 | #endif |
539 | #endif |
|
|
540 | #endif |
472 | |
541 | |
|
|
542 | /*****************************************************************************/ |
|
|
543 | |
|
|
544 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
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545 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
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546 | |
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|
547 | #if ECB_NO_THREADS |
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|
548 | # define ECB_NO_SMP 1 |
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|
549 | #endif |
|
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550 | |
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551 | #if ECB_NO_THREADS || ECB_NO_SMP |
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|
552 | #define ECB_MEMORY_FENCE do { } while (0) |
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|
553 | #endif |
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554 | |
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|
555 | #ifndef ECB_MEMORY_FENCE |
|
|
556 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
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|
557 | #if __i386 || __i386__ |
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|
558 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
559 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ |
|
|
560 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ |
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|
561 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
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562 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
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|
563 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
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564 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ |
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565 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
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|
566 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
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|
567 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
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|
568 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
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|
569 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
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570 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
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571 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
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572 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
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573 | #elif __sparc || __sparc__ |
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574 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") |
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575 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
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576 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
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|
577 | #elif defined __s390__ || defined __s390x__ |
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578 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
579 | #elif defined __mips__ |
|
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580 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
581 | #elif defined __alpha__ |
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|
582 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
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|
583 | #endif |
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|
584 | #endif |
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585 | #endif |
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586 | |
|
|
587 | #ifndef ECB_MEMORY_FENCE |
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|
588 | #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
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|
589 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
590 | /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ |
|
|
591 | /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ |
|
|
592 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
593 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
594 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
595 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
596 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
597 | #elif defined _WIN32 |
|
|
598 | #include <WinNT.h> |
|
|
599 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
600 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
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|
601 | #include <mbarrier.h> |
|
|
602 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
603 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
|
|
604 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
|
|
605 | #elif __xlC__ |
|
|
606 | #define ECB_MEMORY_FENCE __sync () |
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|
607 | #endif |
|
|
608 | #endif |
|
|
609 | |
|
|
610 | #ifndef ECB_MEMORY_FENCE |
|
|
611 | #if !ECB_AVOID_PTHREADS |
|
|
612 | /* |
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|
613 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
614 | * or failure to find pthread.h, then you should implement |
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|
615 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
616 | * OR provide pthread.h and link against the posix thread library |
|
|
617 | * of your system. |
|
|
618 | */ |
|
|
619 | #include <pthread.h> |
|
|
620 | #define ECB_NEEDS_PTHREADS 1 |
|
|
621 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
622 | |
|
|
623 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
624 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
625 | #endif |
|
|
626 | #endif |
|
|
627 | |
|
|
628 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
|
|
629 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
630 | #endif |
|
|
631 | |
|
|
632 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
|
|
633 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
634 | #endif |
|
|
635 | |
|
|
636 | /*****************************************************************************/ |
|
|
637 | |
|
|
638 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
|
|
639 | |
|
|
640 | #if __cplusplus |
|
|
641 | #define ecb_inline static inline |
|
|
642 | #elif ECB_GCC_VERSION(2,5) |
|
|
643 | #define ecb_inline static __inline__ |
|
|
644 | #elif ECB_C99 |
|
|
645 | #define ecb_inline static inline |
|
|
646 | #else |
|
|
647 | #define ecb_inline static |
|
|
648 | #endif |
|
|
649 | |
|
|
650 | #if ECB_GCC_VERSION(3,3) |
|
|
651 | #define ecb_restrict __restrict__ |
|
|
652 | #elif ECB_C99 |
|
|
653 | #define ecb_restrict restrict |
|
|
654 | #else |
|
|
655 | #define ecb_restrict |
|
|
656 | #endif |
|
|
657 | |
|
|
658 | typedef int ecb_bool; |
|
|
659 | |
|
|
660 | #define ECB_CONCAT_(a, b) a ## b |
|
|
661 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
662 | #define ECB_STRINGIFY_(a) # a |
|
|
663 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
664 | |
|
|
665 | #define ecb_function_ ecb_inline |
|
|
666 | |
|
|
667 | #if ECB_GCC_VERSION(3,1) |
|
|
668 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
|
|
669 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
670 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
671 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
672 | #else |
|
|
673 | #define ecb_attribute(attrlist) |
|
|
674 | #define ecb_is_constant(expr) 0 |
|
|
675 | #define ecb_expect(expr,value) (expr) |
|
|
676 | #define ecb_prefetch(addr,rw,locality) |
|
|
677 | #endif |
|
|
678 | |
|
|
679 | /* no emulation for ecb_decltype */ |
|
|
680 | #if ECB_GCC_VERSION(4,5) |
|
|
681 | #define ecb_decltype(x) __decltype(x) |
|
|
682 | #elif ECB_GCC_VERSION(3,0) |
|
|
683 | #define ecb_decltype(x) __typeof(x) |
|
|
684 | #endif |
|
|
685 | |
|
|
686 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
687 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
688 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
689 | #define ecb_const ecb_attribute ((__const__)) |
|
|
690 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
691 | |
|
|
692 | #if ECB_GCC_VERSION(4,3) |
|
|
693 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
694 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
695 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
696 | #else |
|
|
697 | #define ecb_artificial |
|
|
698 | #define ecb_hot |
|
|
699 | #define ecb_cold |
|
|
700 | #endif |
|
|
701 | |
|
|
702 | /* put around conditional expressions if you are very sure that the */ |
|
|
703 | /* expression is mostly true or mostly false. note that these return */ |
|
|
704 | /* booleans, not the expression. */ |
473 | #define expect_false(expr) expect ((expr) != 0, 0) |
705 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
474 | #define expect_true(expr) expect ((expr) != 0, 1) |
706 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
707 | /* for compatibility to the rest of the world */ |
|
|
708 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
709 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
710 | |
|
|
711 | /* count trailing zero bits and count # of one bits */ |
|
|
712 | #if ECB_GCC_VERSION(3,4) |
|
|
713 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
714 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
715 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
716 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
717 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
718 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
719 | /* no popcountll */ |
|
|
720 | #else |
|
|
721 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
|
|
722 | ecb_function_ int |
|
|
723 | ecb_ctz32 (uint32_t x) |
|
|
724 | { |
|
|
725 | int r = 0; |
|
|
726 | |
|
|
727 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
728 | |
|
|
729 | #if ECB_branchless_on_i386 |
|
|
730 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
731 | r += !!(x & 0xcccccccc) << 1; |
|
|
732 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
733 | r += !!(x & 0xff00ff00) << 3; |
|
|
734 | r += !!(x & 0xffff0000) << 4; |
|
|
735 | #else |
|
|
736 | if (x & 0xaaaaaaaa) r += 1; |
|
|
737 | if (x & 0xcccccccc) r += 2; |
|
|
738 | if (x & 0xf0f0f0f0) r += 4; |
|
|
739 | if (x & 0xff00ff00) r += 8; |
|
|
740 | if (x & 0xffff0000) r += 16; |
|
|
741 | #endif |
|
|
742 | |
|
|
743 | return r; |
|
|
744 | } |
|
|
745 | |
|
|
746 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
|
|
747 | ecb_function_ int |
|
|
748 | ecb_ctz64 (uint64_t x) |
|
|
749 | { |
|
|
750 | int shift = x & 0xffffffffU ? 0 : 32; |
|
|
751 | return ecb_ctz32 (x >> shift) + shift; |
|
|
752 | } |
|
|
753 | |
|
|
754 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
|
|
755 | ecb_function_ int |
|
|
756 | ecb_popcount32 (uint32_t x) |
|
|
757 | { |
|
|
758 | x -= (x >> 1) & 0x55555555; |
|
|
759 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
760 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
761 | x *= 0x01010101; |
|
|
762 | |
|
|
763 | return x >> 24; |
|
|
764 | } |
|
|
765 | |
|
|
766 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
|
|
767 | ecb_function_ int ecb_ld32 (uint32_t x) |
|
|
768 | { |
|
|
769 | int r = 0; |
|
|
770 | |
|
|
771 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
772 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
773 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
774 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
775 | if (x >> 1) { r += 1; } |
|
|
776 | |
|
|
777 | return r; |
|
|
778 | } |
|
|
779 | |
|
|
780 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
|
|
781 | ecb_function_ int ecb_ld64 (uint64_t x) |
|
|
782 | { |
|
|
783 | int r = 0; |
|
|
784 | |
|
|
785 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
786 | |
|
|
787 | return r + ecb_ld32 (x); |
|
|
788 | } |
|
|
789 | #endif |
|
|
790 | |
|
|
791 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
|
|
792 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
|
|
793 | { |
|
|
794 | return ( (x * 0x0802U & 0x22110U) |
|
|
795 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
796 | } |
|
|
797 | |
|
|
798 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
|
|
799 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
|
|
800 | { |
|
|
801 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
802 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
803 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
804 | x = ( x >> 8 ) | ( x << 8); |
|
|
805 | |
|
|
806 | return x; |
|
|
807 | } |
|
|
808 | |
|
|
809 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
|
|
810 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
|
|
811 | { |
|
|
812 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
813 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
814 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
815 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
816 | x = ( x >> 16 ) | ( x << 16); |
|
|
817 | |
|
|
818 | return x; |
|
|
819 | } |
|
|
820 | |
|
|
821 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
822 | /* so for this version we are lazy */ |
|
|
823 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
|
|
824 | ecb_function_ int |
|
|
825 | ecb_popcount64 (uint64_t x) |
|
|
826 | { |
|
|
827 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
828 | } |
|
|
829 | |
|
|
830 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
|
|
831 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
|
|
832 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
|
|
833 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
|
|
834 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
|
|
835 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
|
|
836 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
|
|
837 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
|
|
838 | |
|
|
839 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
840 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
841 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
842 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
843 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
844 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
845 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
846 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
847 | |
|
|
848 | #if ECB_GCC_VERSION(4,3) |
|
|
849 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
850 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
851 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
852 | #else |
|
|
853 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
|
|
854 | ecb_function_ uint16_t |
|
|
855 | ecb_bswap16 (uint16_t x) |
|
|
856 | { |
|
|
857 | return ecb_rotl16 (x, 8); |
|
|
858 | } |
|
|
859 | |
|
|
860 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
|
|
861 | ecb_function_ uint32_t |
|
|
862 | ecb_bswap32 (uint32_t x) |
|
|
863 | { |
|
|
864 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
865 | } |
|
|
866 | |
|
|
867 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
|
|
868 | ecb_function_ uint64_t |
|
|
869 | ecb_bswap64 (uint64_t x) |
|
|
870 | { |
|
|
871 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
872 | } |
|
|
873 | #endif |
|
|
874 | |
|
|
875 | #if ECB_GCC_VERSION(4,5) |
|
|
876 | #define ecb_unreachable() __builtin_unreachable () |
|
|
877 | #else |
|
|
878 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
879 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
|
|
880 | ecb_inline void ecb_unreachable (void) { } |
|
|
881 | #endif |
|
|
882 | |
|
|
883 | /* try to tell the compiler that some condition is definitely true */ |
|
|
884 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
|
|
885 | |
|
|
886 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
|
|
887 | ecb_inline unsigned char |
|
|
888 | ecb_byteorder_helper (void) |
|
|
889 | { |
|
|
890 | const uint32_t u = 0x11223344; |
|
|
891 | return *(unsigned char *)&u; |
|
|
892 | } |
|
|
893 | |
|
|
894 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
|
|
895 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
|
|
896 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
|
|
897 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
|
|
898 | |
|
|
899 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
900 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
901 | #else |
|
|
902 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
903 | #endif |
|
|
904 | |
|
|
905 | #if __cplusplus |
|
|
906 | template<typename T> |
|
|
907 | static inline T ecb_div_rd (T val, T div) |
|
|
908 | { |
|
|
909 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
910 | } |
|
|
911 | template<typename T> |
|
|
912 | static inline T ecb_div_ru (T val, T div) |
|
|
913 | { |
|
|
914 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
915 | } |
|
|
916 | #else |
|
|
917 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
918 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
919 | #endif |
|
|
920 | |
|
|
921 | #if ecb_cplusplus_does_not_suck |
|
|
922 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
923 | template<typename T, int N> |
|
|
924 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
925 | { |
|
|
926 | return N; |
|
|
927 | } |
|
|
928 | #else |
|
|
929 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
930 | #endif |
|
|
931 | |
|
|
932 | #endif |
|
|
933 | |
|
|
934 | /* ECB.H END */ |
|
|
935 | |
|
|
936 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
937 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
938 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
939 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
|
|
940 | * libev, in which cases the memory fences become nops. |
|
|
941 | * alternatively, you can remove this #error and link against libpthread, |
|
|
942 | * which will then provide the memory fences. |
|
|
943 | */ |
|
|
944 | # error "memory fences not defined for your architecture, please report" |
|
|
945 | #endif |
|
|
946 | |
|
|
947 | #ifndef ECB_MEMORY_FENCE |
|
|
948 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
949 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
950 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
951 | #endif |
|
|
952 | |
|
|
953 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
954 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
955 | #define noinline ecb_noinline |
|
|
956 | |
475 | #define inline_size static inline |
957 | #define inline_size ecb_inline |
476 | |
958 | |
477 | #if EV_FEATURE_CODE |
959 | #if EV_FEATURE_CODE |
478 | # define inline_speed static inline |
960 | # define inline_speed ecb_inline |
479 | #else |
961 | #else |
480 | # define inline_speed static noinline |
962 | # define inline_speed static noinline |
481 | #endif |
963 | #endif |
482 | |
964 | |
483 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
965 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
… | |
… | |
522 | # include "ev_win32.c" |
1004 | # include "ev_win32.c" |
523 | #endif |
1005 | #endif |
524 | |
1006 | |
525 | /*****************************************************************************/ |
1007 | /*****************************************************************************/ |
526 | |
1008 | |
|
|
1009 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
1010 | |
|
|
1011 | #if EV_USE_FLOOR |
|
|
1012 | # include <math.h> |
|
|
1013 | # define ev_floor(v) floor (v) |
|
|
1014 | #else |
|
|
1015 | |
|
|
1016 | #include <float.h> |
|
|
1017 | |
|
|
1018 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1019 | static ev_tstamp noinline |
|
|
1020 | ev_floor (ev_tstamp v) |
|
|
1021 | { |
|
|
1022 | /* the choice of shift factor is not terribly important */ |
|
|
1023 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
1024 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
1025 | #else |
|
|
1026 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
1027 | #endif |
|
|
1028 | |
|
|
1029 | /* argument too large for an unsigned long? */ |
|
|
1030 | if (expect_false (v >= shift)) |
|
|
1031 | { |
|
|
1032 | ev_tstamp f; |
|
|
1033 | |
|
|
1034 | if (v == v - 1.) |
|
|
1035 | return v; /* very large number */ |
|
|
1036 | |
|
|
1037 | f = shift * ev_floor (v * (1. / shift)); |
|
|
1038 | return f + ev_floor (v - f); |
|
|
1039 | } |
|
|
1040 | |
|
|
1041 | /* special treatment for negative args? */ |
|
|
1042 | if (expect_false (v < 0.)) |
|
|
1043 | { |
|
|
1044 | ev_tstamp f = -ev_floor (-v); |
|
|
1045 | |
|
|
1046 | return f - (f == v ? 0 : 1); |
|
|
1047 | } |
|
|
1048 | |
|
|
1049 | /* fits into an unsigned long */ |
|
|
1050 | return (unsigned long)v; |
|
|
1051 | } |
|
|
1052 | |
|
|
1053 | #endif |
|
|
1054 | |
|
|
1055 | /*****************************************************************************/ |
|
|
1056 | |
527 | #ifdef __linux |
1057 | #ifdef __linux |
528 | # include <sys/utsname.h> |
1058 | # include <sys/utsname.h> |
529 | #endif |
1059 | #endif |
530 | |
1060 | |
531 | static unsigned int noinline |
1061 | static unsigned int noinline ecb_cold |
532 | ev_linux_version (void) |
1062 | ev_linux_version (void) |
533 | { |
1063 | { |
534 | #ifdef __linux |
1064 | #ifdef __linux |
|
|
1065 | unsigned int v = 0; |
535 | struct utsname buf; |
1066 | struct utsname buf; |
536 | unsigned int v; |
|
|
537 | int i; |
1067 | int i; |
538 | char *p = buf.release; |
1068 | char *p = buf.release; |
539 | |
1069 | |
540 | if (uname (&buf)) |
1070 | if (uname (&buf)) |
541 | return 0; |
1071 | return 0; |
… | |
… | |
565 | } |
1095 | } |
566 | |
1096 | |
567 | /*****************************************************************************/ |
1097 | /*****************************************************************************/ |
568 | |
1098 | |
569 | #if EV_AVOID_STDIO |
1099 | #if EV_AVOID_STDIO |
570 | static void noinline |
1100 | static void noinline ecb_cold |
571 | ev_printerr (const char *msg) |
1101 | ev_printerr (const char *msg) |
572 | { |
1102 | { |
573 | write (STDERR_FILENO, msg, strlen (msg)); |
1103 | write (STDERR_FILENO, msg, strlen (msg)); |
574 | } |
1104 | } |
575 | #endif |
1105 | #endif |
576 | |
1106 | |
577 | static void (*syserr_cb)(const char *msg); |
1107 | static void (*syserr_cb)(const char *msg) EV_THROW; |
578 | |
1108 | |
579 | void |
1109 | void ecb_cold |
580 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1110 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
581 | { |
1111 | { |
582 | syserr_cb = cb; |
1112 | syserr_cb = cb; |
583 | } |
1113 | } |
584 | |
1114 | |
585 | static void noinline |
1115 | static void noinline ecb_cold |
586 | ev_syserr (const char *msg) |
1116 | ev_syserr (const char *msg) |
587 | { |
1117 | { |
588 | if (!msg) |
1118 | if (!msg) |
589 | msg = "(libev) system error"; |
1119 | msg = "(libev) system error"; |
590 | |
1120 | |
591 | if (syserr_cb) |
1121 | if (syserr_cb) |
592 | syserr_cb (msg); |
1122 | syserr_cb (msg); |
593 | else |
1123 | else |
594 | { |
1124 | { |
595 | #if EV_AVOID_STDIO |
1125 | #if EV_AVOID_STDIO |
596 | const char *err = strerror (errno); |
|
|
597 | |
|
|
598 | ev_printerr (msg); |
1126 | ev_printerr (msg); |
599 | ev_printerr (": "); |
1127 | ev_printerr (": "); |
600 | ev_printerr (err); |
1128 | ev_printerr (strerror (errno)); |
601 | ev_printerr ("\n"); |
1129 | ev_printerr ("\n"); |
602 | #else |
1130 | #else |
603 | perror (msg); |
1131 | perror (msg); |
604 | #endif |
1132 | #endif |
605 | abort (); |
1133 | abort (); |
606 | } |
1134 | } |
607 | } |
1135 | } |
608 | |
1136 | |
609 | static void * |
1137 | static void * |
610 | ev_realloc_emul (void *ptr, long size) |
1138 | ev_realloc_emul (void *ptr, long size) EV_THROW |
611 | { |
1139 | { |
612 | #if __GLIBC__ |
1140 | #if __GLIBC__ |
613 | return realloc (ptr, size); |
1141 | return realloc (ptr, size); |
614 | #else |
1142 | #else |
615 | /* some systems, notably openbsd and darwin, fail to properly |
1143 | /* some systems, notably openbsd and darwin, fail to properly |
… | |
… | |
623 | free (ptr); |
1151 | free (ptr); |
624 | return 0; |
1152 | return 0; |
625 | #endif |
1153 | #endif |
626 | } |
1154 | } |
627 | |
1155 | |
628 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1156 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
629 | |
1157 | |
630 | void |
1158 | void ecb_cold |
631 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1159 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
632 | { |
1160 | { |
633 | alloc = cb; |
1161 | alloc = cb; |
634 | } |
1162 | } |
635 | |
1163 | |
636 | inline_speed void * |
1164 | inline_speed void * |
… | |
… | |
639 | ptr = alloc (ptr, size); |
1167 | ptr = alloc (ptr, size); |
640 | |
1168 | |
641 | if (!ptr && size) |
1169 | if (!ptr && size) |
642 | { |
1170 | { |
643 | #if EV_AVOID_STDIO |
1171 | #if EV_AVOID_STDIO |
644 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
1172 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
645 | #else |
1173 | #else |
646 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
1174 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
647 | #endif |
1175 | #endif |
648 | abort (); |
1176 | abort (); |
649 | } |
1177 | } |
650 | |
1178 | |
651 | return ptr; |
1179 | return ptr; |
… | |
… | |
668 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
1196 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
669 | unsigned char unused; |
1197 | unsigned char unused; |
670 | #if EV_USE_EPOLL |
1198 | #if EV_USE_EPOLL |
671 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1199 | unsigned int egen; /* generation counter to counter epoll bugs */ |
672 | #endif |
1200 | #endif |
673 | #if EV_SELECT_IS_WINSOCKET |
1201 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
674 | SOCKET handle; |
1202 | SOCKET handle; |
|
|
1203 | #endif |
|
|
1204 | #if EV_USE_IOCP |
|
|
1205 | OVERLAPPED or, ow; |
675 | #endif |
1206 | #endif |
676 | } ANFD; |
1207 | } ANFD; |
677 | |
1208 | |
678 | /* stores the pending event set for a given watcher */ |
1209 | /* stores the pending event set for a given watcher */ |
679 | typedef struct |
1210 | typedef struct |
… | |
… | |
721 | #undef VAR |
1252 | #undef VAR |
722 | }; |
1253 | }; |
723 | #include "ev_wrap.h" |
1254 | #include "ev_wrap.h" |
724 | |
1255 | |
725 | static struct ev_loop default_loop_struct; |
1256 | static struct ev_loop default_loop_struct; |
726 | struct ev_loop *ev_default_loop_ptr; |
1257 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
727 | |
1258 | |
728 | #else |
1259 | #else |
729 | |
1260 | |
730 | ev_tstamp ev_rt_now; |
1261 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
731 | #define VAR(name,decl) static decl; |
1262 | #define VAR(name,decl) static decl; |
732 | #include "ev_vars.h" |
1263 | #include "ev_vars.h" |
733 | #undef VAR |
1264 | #undef VAR |
734 | |
1265 | |
735 | static int ev_default_loop_ptr; |
1266 | static int ev_default_loop_ptr; |
… | |
… | |
750 | |
1281 | |
751 | /*****************************************************************************/ |
1282 | /*****************************************************************************/ |
752 | |
1283 | |
753 | #ifndef EV_HAVE_EV_TIME |
1284 | #ifndef EV_HAVE_EV_TIME |
754 | ev_tstamp |
1285 | ev_tstamp |
755 | ev_time (void) |
1286 | ev_time (void) EV_THROW |
756 | { |
1287 | { |
757 | #if EV_USE_REALTIME |
1288 | #if EV_USE_REALTIME |
758 | if (expect_true (have_realtime)) |
1289 | if (expect_true (have_realtime)) |
759 | { |
1290 | { |
760 | struct timespec ts; |
1291 | struct timespec ts; |
… | |
… | |
784 | return ev_time (); |
1315 | return ev_time (); |
785 | } |
1316 | } |
786 | |
1317 | |
787 | #if EV_MULTIPLICITY |
1318 | #if EV_MULTIPLICITY |
788 | ev_tstamp |
1319 | ev_tstamp |
789 | ev_now (EV_P) |
1320 | ev_now (EV_P) EV_THROW |
790 | { |
1321 | { |
791 | return ev_rt_now; |
1322 | return ev_rt_now; |
792 | } |
1323 | } |
793 | #endif |
1324 | #endif |
794 | |
1325 | |
795 | void |
1326 | void |
796 | ev_sleep (ev_tstamp delay) |
1327 | ev_sleep (ev_tstamp delay) EV_THROW |
797 | { |
1328 | { |
798 | if (delay > 0.) |
1329 | if (delay > 0.) |
799 | { |
1330 | { |
800 | #if EV_USE_NANOSLEEP |
1331 | #if EV_USE_NANOSLEEP |
801 | struct timespec ts; |
1332 | struct timespec ts; |
802 | |
1333 | |
803 | EV_TS_SET (ts, delay); |
1334 | EV_TS_SET (ts, delay); |
804 | nanosleep (&ts, 0); |
1335 | nanosleep (&ts, 0); |
805 | #elif defined(_WIN32) |
1336 | #elif defined _WIN32 |
806 | Sleep ((unsigned long)(delay * 1e3)); |
1337 | Sleep ((unsigned long)(delay * 1e3)); |
807 | #else |
1338 | #else |
808 | struct timeval tv; |
1339 | struct timeval tv; |
809 | |
1340 | |
810 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1341 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
… | |
… | |
829 | |
1360 | |
830 | do |
1361 | do |
831 | ncur <<= 1; |
1362 | ncur <<= 1; |
832 | while (cnt > ncur); |
1363 | while (cnt > ncur); |
833 | |
1364 | |
834 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
1365 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
835 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1366 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
836 | { |
1367 | { |
837 | ncur *= elem; |
1368 | ncur *= elem; |
838 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1369 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
839 | ncur = ncur - sizeof (void *) * 4; |
1370 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
841 | } |
1372 | } |
842 | |
1373 | |
843 | return ncur; |
1374 | return ncur; |
844 | } |
1375 | } |
845 | |
1376 | |
846 | static noinline void * |
1377 | static void * noinline ecb_cold |
847 | array_realloc (int elem, void *base, int *cur, int cnt) |
1378 | array_realloc (int elem, void *base, int *cur, int cnt) |
848 | { |
1379 | { |
849 | *cur = array_nextsize (elem, *cur, cnt); |
1380 | *cur = array_nextsize (elem, *cur, cnt); |
850 | return ev_realloc (base, elem * *cur); |
1381 | return ev_realloc (base, elem * *cur); |
851 | } |
1382 | } |
… | |
… | |
854 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1385 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
855 | |
1386 | |
856 | #define array_needsize(type,base,cur,cnt,init) \ |
1387 | #define array_needsize(type,base,cur,cnt,init) \ |
857 | if (expect_false ((cnt) > (cur))) \ |
1388 | if (expect_false ((cnt) > (cur))) \ |
858 | { \ |
1389 | { \ |
859 | int ocur_ = (cur); \ |
1390 | int ecb_unused ocur_ = (cur); \ |
860 | (base) = (type *)array_realloc \ |
1391 | (base) = (type *)array_realloc \ |
861 | (sizeof (type), (base), &(cur), (cnt)); \ |
1392 | (sizeof (type), (base), &(cur), (cnt)); \ |
862 | init ((base) + (ocur_), (cur) - ocur_); \ |
1393 | init ((base) + (ocur_), (cur) - ocur_); \ |
863 | } |
1394 | } |
864 | |
1395 | |
… | |
… | |
882 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1413 | pendingcb (EV_P_ ev_prepare *w, int revents) |
883 | { |
1414 | { |
884 | } |
1415 | } |
885 | |
1416 | |
886 | void noinline |
1417 | void noinline |
887 | ev_feed_event (EV_P_ void *w, int revents) |
1418 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
888 | { |
1419 | { |
889 | W w_ = (W)w; |
1420 | W w_ = (W)w; |
890 | int pri = ABSPRI (w_); |
1421 | int pri = ABSPRI (w_); |
891 | |
1422 | |
892 | if (expect_false (w_->pending)) |
1423 | if (expect_false (w_->pending)) |
… | |
… | |
896 | w_->pending = ++pendingcnt [pri]; |
1427 | w_->pending = ++pendingcnt [pri]; |
897 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
1428 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
898 | pendings [pri][w_->pending - 1].w = w_; |
1429 | pendings [pri][w_->pending - 1].w = w_; |
899 | pendings [pri][w_->pending - 1].events = revents; |
1430 | pendings [pri][w_->pending - 1].events = revents; |
900 | } |
1431 | } |
|
|
1432 | |
|
|
1433 | pendingpri = NUMPRI - 1; |
901 | } |
1434 | } |
902 | |
1435 | |
903 | inline_speed void |
1436 | inline_speed void |
904 | feed_reverse (EV_P_ W w) |
1437 | feed_reverse (EV_P_ W w) |
905 | { |
1438 | { |
… | |
… | |
951 | if (expect_true (!anfd->reify)) |
1484 | if (expect_true (!anfd->reify)) |
952 | fd_event_nocheck (EV_A_ fd, revents); |
1485 | fd_event_nocheck (EV_A_ fd, revents); |
953 | } |
1486 | } |
954 | |
1487 | |
955 | void |
1488 | void |
956 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1489 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
957 | { |
1490 | { |
958 | if (fd >= 0 && fd < anfdmax) |
1491 | if (fd >= 0 && fd < anfdmax) |
959 | fd_event_nocheck (EV_A_ fd, revents); |
1492 | fd_event_nocheck (EV_A_ fd, revents); |
960 | } |
1493 | } |
961 | |
1494 | |
… | |
… | |
964 | inline_size void |
1497 | inline_size void |
965 | fd_reify (EV_P) |
1498 | fd_reify (EV_P) |
966 | { |
1499 | { |
967 | int i; |
1500 | int i; |
968 | |
1501 | |
|
|
1502 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
1503 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1504 | { |
|
|
1505 | int fd = fdchanges [i]; |
|
|
1506 | ANFD *anfd = anfds + fd; |
|
|
1507 | |
|
|
1508 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
1509 | { |
|
|
1510 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
1511 | |
|
|
1512 | if (handle != anfd->handle) |
|
|
1513 | { |
|
|
1514 | unsigned long arg; |
|
|
1515 | |
|
|
1516 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
1517 | |
|
|
1518 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
1519 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
1520 | anfd->events = 0; |
|
|
1521 | anfd->handle = handle; |
|
|
1522 | } |
|
|
1523 | } |
|
|
1524 | } |
|
|
1525 | #endif |
|
|
1526 | |
969 | for (i = 0; i < fdchangecnt; ++i) |
1527 | for (i = 0; i < fdchangecnt; ++i) |
970 | { |
1528 | { |
971 | int fd = fdchanges [i]; |
1529 | int fd = fdchanges [i]; |
972 | ANFD *anfd = anfds + fd; |
1530 | ANFD *anfd = anfds + fd; |
973 | ev_io *w; |
1531 | ev_io *w; |
… | |
… | |
975 | unsigned char o_events = anfd->events; |
1533 | unsigned char o_events = anfd->events; |
976 | unsigned char o_reify = anfd->reify; |
1534 | unsigned char o_reify = anfd->reify; |
977 | |
1535 | |
978 | anfd->reify = 0; |
1536 | anfd->reify = 0; |
979 | |
1537 | |
980 | #if EV_SELECT_IS_WINSOCKET |
|
|
981 | if (o_reify & EV__IOFDSET) |
|
|
982 | { |
|
|
983 | unsigned long arg; |
|
|
984 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
985 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
|
|
986 | } |
|
|
987 | #endif |
|
|
988 | |
|
|
989 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
1538 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
990 | { |
1539 | { |
991 | anfd->events = 0; |
1540 | anfd->events = 0; |
992 | |
1541 | |
993 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1542 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
1018 | fdchanges [fdchangecnt - 1] = fd; |
1567 | fdchanges [fdchangecnt - 1] = fd; |
1019 | } |
1568 | } |
1020 | } |
1569 | } |
1021 | |
1570 | |
1022 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1571 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1023 | inline_speed void |
1572 | inline_speed void ecb_cold |
1024 | fd_kill (EV_P_ int fd) |
1573 | fd_kill (EV_P_ int fd) |
1025 | { |
1574 | { |
1026 | ev_io *w; |
1575 | ev_io *w; |
1027 | |
1576 | |
1028 | while ((w = (ev_io *)anfds [fd].head)) |
1577 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1031 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1580 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1032 | } |
1581 | } |
1033 | } |
1582 | } |
1034 | |
1583 | |
1035 | /* check whether the given fd is actually valid, for error recovery */ |
1584 | /* check whether the given fd is actually valid, for error recovery */ |
1036 | inline_size int |
1585 | inline_size int ecb_cold |
1037 | fd_valid (int fd) |
1586 | fd_valid (int fd) |
1038 | { |
1587 | { |
1039 | #ifdef _WIN32 |
1588 | #ifdef _WIN32 |
1040 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1589 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1041 | #else |
1590 | #else |
1042 | return fcntl (fd, F_GETFD) != -1; |
1591 | return fcntl (fd, F_GETFD) != -1; |
1043 | #endif |
1592 | #endif |
1044 | } |
1593 | } |
1045 | |
1594 | |
1046 | /* called on EBADF to verify fds */ |
1595 | /* called on EBADF to verify fds */ |
1047 | static void noinline |
1596 | static void noinline ecb_cold |
1048 | fd_ebadf (EV_P) |
1597 | fd_ebadf (EV_P) |
1049 | { |
1598 | { |
1050 | int fd; |
1599 | int fd; |
1051 | |
1600 | |
1052 | for (fd = 0; fd < anfdmax; ++fd) |
1601 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1054 | if (!fd_valid (fd) && errno == EBADF) |
1603 | if (!fd_valid (fd) && errno == EBADF) |
1055 | fd_kill (EV_A_ fd); |
1604 | fd_kill (EV_A_ fd); |
1056 | } |
1605 | } |
1057 | |
1606 | |
1058 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1607 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1059 | static void noinline |
1608 | static void noinline ecb_cold |
1060 | fd_enomem (EV_P) |
1609 | fd_enomem (EV_P) |
1061 | { |
1610 | { |
1062 | int fd; |
1611 | int fd; |
1063 | |
1612 | |
1064 | for (fd = anfdmax; fd--; ) |
1613 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1259 | |
1808 | |
1260 | /*****************************************************************************/ |
1809 | /*****************************************************************************/ |
1261 | |
1810 | |
1262 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1811 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1263 | |
1812 | |
1264 | static void noinline |
1813 | static void noinline ecb_cold |
1265 | evpipe_init (EV_P) |
1814 | evpipe_init (EV_P) |
1266 | { |
1815 | { |
1267 | if (!ev_is_active (&pipe_w)) |
1816 | if (!ev_is_active (&pipe_w)) |
1268 | { |
1817 | { |
1269 | # if EV_USE_EVENTFD |
1818 | # if EV_USE_EVENTFD |
… | |
… | |
1291 | ev_io_start (EV_A_ &pipe_w); |
1840 | ev_io_start (EV_A_ &pipe_w); |
1292 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1841 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1293 | } |
1842 | } |
1294 | } |
1843 | } |
1295 | |
1844 | |
1296 | inline_size void |
1845 | inline_speed void |
1297 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1846 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1298 | { |
1847 | { |
1299 | if (!*flag) |
1848 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
|
|
1849 | |
|
|
1850 | if (expect_true (*flag)) |
|
|
1851 | return; |
|
|
1852 | |
|
|
1853 | *flag = 1; |
|
|
1854 | |
|
|
1855 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
1856 | |
|
|
1857 | pipe_write_skipped = 1; |
|
|
1858 | |
|
|
1859 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
1860 | |
|
|
1861 | if (pipe_write_wanted) |
1300 | { |
1862 | { |
|
|
1863 | int old_errno; |
|
|
1864 | |
|
|
1865 | pipe_write_skipped = 0; /* just an optimisation, no fence needed */ |
|
|
1866 | |
1301 | int old_errno = errno; /* save errno because write might clobber it */ |
1867 | old_errno = errno; /* save errno because write will clobber it */ |
1302 | char dummy; |
|
|
1303 | |
|
|
1304 | *flag = 1; |
|
|
1305 | |
1868 | |
1306 | #if EV_USE_EVENTFD |
1869 | #if EV_USE_EVENTFD |
1307 | if (evfd >= 0) |
1870 | if (evfd >= 0) |
1308 | { |
1871 | { |
1309 | uint64_t counter = 1; |
1872 | uint64_t counter = 1; |
1310 | write (evfd, &counter, sizeof (uint64_t)); |
1873 | write (evfd, &counter, sizeof (uint64_t)); |
1311 | } |
1874 | } |
1312 | else |
1875 | else |
1313 | #endif |
1876 | #endif |
1314 | /* win32 people keep sending patches that change this write() to send() */ |
1877 | { |
1315 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
1878 | #ifdef _WIN32 |
1316 | /* so when you think this write should be a send instead, please find out */ |
1879 | WSABUF buf; |
1317 | /* where your send() is from - it's definitely not the microsoft send, and */ |
1880 | DWORD sent; |
1318 | /* tell me. thank you. */ |
1881 | buf.buf = &buf; |
|
|
1882 | buf.len = 1; |
|
|
1883 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
|
|
1884 | #else |
1319 | write (evpipe [1], &dummy, 1); |
1885 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
1886 | #endif |
|
|
1887 | } |
1320 | |
1888 | |
1321 | errno = old_errno; |
1889 | errno = old_errno; |
1322 | } |
1890 | } |
1323 | } |
1891 | } |
1324 | |
1892 | |
… | |
… | |
1327 | static void |
1895 | static void |
1328 | pipecb (EV_P_ ev_io *iow, int revents) |
1896 | pipecb (EV_P_ ev_io *iow, int revents) |
1329 | { |
1897 | { |
1330 | int i; |
1898 | int i; |
1331 | |
1899 | |
|
|
1900 | if (revents & EV_READ) |
|
|
1901 | { |
1332 | #if EV_USE_EVENTFD |
1902 | #if EV_USE_EVENTFD |
1333 | if (evfd >= 0) |
1903 | if (evfd >= 0) |
1334 | { |
1904 | { |
1335 | uint64_t counter; |
1905 | uint64_t counter; |
1336 | read (evfd, &counter, sizeof (uint64_t)); |
1906 | read (evfd, &counter, sizeof (uint64_t)); |
1337 | } |
1907 | } |
1338 | else |
1908 | else |
1339 | #endif |
1909 | #endif |
1340 | { |
1910 | { |
1341 | char dummy; |
1911 | char dummy[4]; |
1342 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1912 | #ifdef _WIN32 |
|
|
1913 | WSABUF buf; |
|
|
1914 | DWORD recvd; |
|
|
1915 | DWORD flags = 0; |
|
|
1916 | buf.buf = dummy; |
|
|
1917 | buf.len = sizeof (dummy); |
|
|
1918 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
1919 | #else |
1343 | read (evpipe [0], &dummy, 1); |
1920 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
1921 | #endif |
|
|
1922 | } |
1344 | } |
1923 | } |
1345 | |
1924 | |
|
|
1925 | pipe_write_skipped = 0; |
|
|
1926 | |
|
|
1927 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
|
|
1928 | |
|
|
1929 | #if EV_SIGNAL_ENABLE |
1346 | if (sig_pending) |
1930 | if (sig_pending) |
1347 | { |
1931 | { |
1348 | sig_pending = 0; |
1932 | sig_pending = 0; |
|
|
1933 | |
|
|
1934 | ECB_MEMORY_FENCE_RELEASE; |
1349 | |
1935 | |
1350 | for (i = EV_NSIG - 1; i--; ) |
1936 | for (i = EV_NSIG - 1; i--; ) |
1351 | if (expect_false (signals [i].pending)) |
1937 | if (expect_false (signals [i].pending)) |
1352 | ev_feed_signal_event (EV_A_ i + 1); |
1938 | ev_feed_signal_event (EV_A_ i + 1); |
1353 | } |
1939 | } |
|
|
1940 | #endif |
1354 | |
1941 | |
1355 | #if EV_ASYNC_ENABLE |
1942 | #if EV_ASYNC_ENABLE |
1356 | if (async_pending) |
1943 | if (async_pending) |
1357 | { |
1944 | { |
1358 | async_pending = 0; |
1945 | async_pending = 0; |
|
|
1946 | |
|
|
1947 | ECB_MEMORY_FENCE_RELEASE; |
1359 | |
1948 | |
1360 | for (i = asynccnt; i--; ) |
1949 | for (i = asynccnt; i--; ) |
1361 | if (asyncs [i]->sent) |
1950 | if (asyncs [i]->sent) |
1362 | { |
1951 | { |
1363 | asyncs [i]->sent = 0; |
1952 | asyncs [i]->sent = 0; |
… | |
… | |
1367 | #endif |
1956 | #endif |
1368 | } |
1957 | } |
1369 | |
1958 | |
1370 | /*****************************************************************************/ |
1959 | /*****************************************************************************/ |
1371 | |
1960 | |
|
|
1961 | void |
|
|
1962 | ev_feed_signal (int signum) EV_THROW |
|
|
1963 | { |
|
|
1964 | #if EV_MULTIPLICITY |
|
|
1965 | EV_P = signals [signum - 1].loop; |
|
|
1966 | |
|
|
1967 | if (!EV_A) |
|
|
1968 | return; |
|
|
1969 | #endif |
|
|
1970 | |
|
|
1971 | if (!ev_active (&pipe_w)) |
|
|
1972 | return; |
|
|
1973 | |
|
|
1974 | signals [signum - 1].pending = 1; |
|
|
1975 | evpipe_write (EV_A_ &sig_pending); |
|
|
1976 | } |
|
|
1977 | |
1372 | static void |
1978 | static void |
1373 | ev_sighandler (int signum) |
1979 | ev_sighandler (int signum) |
1374 | { |
1980 | { |
1375 | #if EV_MULTIPLICITY |
|
|
1376 | EV_P = signals [signum - 1].loop; |
|
|
1377 | #endif |
|
|
1378 | |
|
|
1379 | #ifdef _WIN32 |
1981 | #ifdef _WIN32 |
1380 | signal (signum, ev_sighandler); |
1982 | signal (signum, ev_sighandler); |
1381 | #endif |
1983 | #endif |
1382 | |
1984 | |
1383 | signals [signum - 1].pending = 1; |
1985 | ev_feed_signal (signum); |
1384 | evpipe_write (EV_A_ &sig_pending); |
|
|
1385 | } |
1986 | } |
1386 | |
1987 | |
1387 | void noinline |
1988 | void noinline |
1388 | ev_feed_signal_event (EV_P_ int signum) |
1989 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
1389 | { |
1990 | { |
1390 | WL w; |
1991 | WL w; |
1391 | |
1992 | |
1392 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
1993 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
1393 | return; |
1994 | return; |
… | |
… | |
1489 | |
2090 | |
1490 | #endif |
2091 | #endif |
1491 | |
2092 | |
1492 | /*****************************************************************************/ |
2093 | /*****************************************************************************/ |
1493 | |
2094 | |
|
|
2095 | #if EV_USE_IOCP |
|
|
2096 | # include "ev_iocp.c" |
|
|
2097 | #endif |
1494 | #if EV_USE_PORT |
2098 | #if EV_USE_PORT |
1495 | # include "ev_port.c" |
2099 | # include "ev_port.c" |
1496 | #endif |
2100 | #endif |
1497 | #if EV_USE_KQUEUE |
2101 | #if EV_USE_KQUEUE |
1498 | # include "ev_kqueue.c" |
2102 | # include "ev_kqueue.c" |
… | |
… | |
1505 | #endif |
2109 | #endif |
1506 | #if EV_USE_SELECT |
2110 | #if EV_USE_SELECT |
1507 | # include "ev_select.c" |
2111 | # include "ev_select.c" |
1508 | #endif |
2112 | #endif |
1509 | |
2113 | |
1510 | int |
2114 | int ecb_cold |
1511 | ev_version_major (void) |
2115 | ev_version_major (void) EV_THROW |
1512 | { |
2116 | { |
1513 | return EV_VERSION_MAJOR; |
2117 | return EV_VERSION_MAJOR; |
1514 | } |
2118 | } |
1515 | |
2119 | |
1516 | int |
2120 | int ecb_cold |
1517 | ev_version_minor (void) |
2121 | ev_version_minor (void) EV_THROW |
1518 | { |
2122 | { |
1519 | return EV_VERSION_MINOR; |
2123 | return EV_VERSION_MINOR; |
1520 | } |
2124 | } |
1521 | |
2125 | |
1522 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2126 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1523 | int inline_size |
2127 | int inline_size ecb_cold |
1524 | enable_secure (void) |
2128 | enable_secure (void) |
1525 | { |
2129 | { |
1526 | #ifdef _WIN32 |
2130 | #ifdef _WIN32 |
1527 | return 0; |
2131 | return 0; |
1528 | #else |
2132 | #else |
1529 | return getuid () != geteuid () |
2133 | return getuid () != geteuid () |
1530 | || getgid () != getegid (); |
2134 | || getgid () != getegid (); |
1531 | #endif |
2135 | #endif |
1532 | } |
2136 | } |
1533 | |
2137 | |
1534 | unsigned int |
2138 | unsigned int ecb_cold |
1535 | ev_supported_backends (void) |
2139 | ev_supported_backends (void) EV_THROW |
1536 | { |
2140 | { |
1537 | unsigned int flags = 0; |
2141 | unsigned int flags = 0; |
1538 | |
2142 | |
1539 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2143 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1540 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2144 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
… | |
… | |
1543 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2147 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
1544 | |
2148 | |
1545 | return flags; |
2149 | return flags; |
1546 | } |
2150 | } |
1547 | |
2151 | |
1548 | unsigned int |
2152 | unsigned int ecb_cold |
1549 | ev_recommended_backends (void) |
2153 | ev_recommended_backends (void) EV_THROW |
1550 | { |
2154 | { |
1551 | unsigned int flags = ev_supported_backends (); |
2155 | unsigned int flags = ev_supported_backends (); |
1552 | |
2156 | |
1553 | #ifndef __NetBSD__ |
2157 | #ifndef __NetBSD__ |
1554 | /* kqueue is borked on everything but netbsd apparently */ |
2158 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
1565 | #endif |
2169 | #endif |
1566 | |
2170 | |
1567 | return flags; |
2171 | return flags; |
1568 | } |
2172 | } |
1569 | |
2173 | |
1570 | unsigned int |
2174 | unsigned int ecb_cold |
1571 | ev_embeddable_backends (void) |
2175 | ev_embeddable_backends (void) EV_THROW |
1572 | { |
2176 | { |
1573 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2177 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1574 | |
2178 | |
1575 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2179 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1576 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
2180 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
… | |
… | |
1578 | |
2182 | |
1579 | return flags; |
2183 | return flags; |
1580 | } |
2184 | } |
1581 | |
2185 | |
1582 | unsigned int |
2186 | unsigned int |
1583 | ev_backend (EV_P) |
2187 | ev_backend (EV_P) EV_THROW |
1584 | { |
2188 | { |
1585 | return backend; |
2189 | return backend; |
1586 | } |
2190 | } |
1587 | |
2191 | |
1588 | #if EV_FEATURE_API |
2192 | #if EV_FEATURE_API |
1589 | unsigned int |
2193 | unsigned int |
1590 | ev_iteration (EV_P) |
2194 | ev_iteration (EV_P) EV_THROW |
1591 | { |
2195 | { |
1592 | return loop_count; |
2196 | return loop_count; |
1593 | } |
2197 | } |
1594 | |
2198 | |
1595 | unsigned int |
2199 | unsigned int |
1596 | ev_depth (EV_P) |
2200 | ev_depth (EV_P) EV_THROW |
1597 | { |
2201 | { |
1598 | return loop_depth; |
2202 | return loop_depth; |
1599 | } |
2203 | } |
1600 | |
2204 | |
1601 | void |
2205 | void |
1602 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2206 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1603 | { |
2207 | { |
1604 | io_blocktime = interval; |
2208 | io_blocktime = interval; |
1605 | } |
2209 | } |
1606 | |
2210 | |
1607 | void |
2211 | void |
1608 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2212 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1609 | { |
2213 | { |
1610 | timeout_blocktime = interval; |
2214 | timeout_blocktime = interval; |
1611 | } |
2215 | } |
1612 | |
2216 | |
1613 | void |
2217 | void |
1614 | ev_set_userdata (EV_P_ void *data) |
2218 | ev_set_userdata (EV_P_ void *data) EV_THROW |
1615 | { |
2219 | { |
1616 | userdata = data; |
2220 | userdata = data; |
1617 | } |
2221 | } |
1618 | |
2222 | |
1619 | void * |
2223 | void * |
1620 | ev_userdata (EV_P) |
2224 | ev_userdata (EV_P) EV_THROW |
1621 | { |
2225 | { |
1622 | return userdata; |
2226 | return userdata; |
1623 | } |
2227 | } |
1624 | |
2228 | |
|
|
2229 | void |
1625 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
2230 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW |
1626 | { |
2231 | { |
1627 | invoke_cb = invoke_pending_cb; |
2232 | invoke_cb = invoke_pending_cb; |
1628 | } |
2233 | } |
1629 | |
2234 | |
|
|
2235 | void |
1630 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
2236 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW |
1631 | { |
2237 | { |
1632 | release_cb = release; |
2238 | release_cb = release; |
1633 | acquire_cb = acquire; |
2239 | acquire_cb = acquire; |
1634 | } |
2240 | } |
1635 | #endif |
2241 | #endif |
1636 | |
2242 | |
1637 | /* initialise a loop structure, must be zero-initialised */ |
2243 | /* initialise a loop structure, must be zero-initialised */ |
1638 | static void noinline |
2244 | static void noinline ecb_cold |
1639 | loop_init (EV_P_ unsigned int flags) |
2245 | loop_init (EV_P_ unsigned int flags) EV_THROW |
1640 | { |
2246 | { |
1641 | if (!backend) |
2247 | if (!backend) |
1642 | { |
2248 | { |
|
|
2249 | origflags = flags; |
|
|
2250 | |
1643 | #if EV_USE_REALTIME |
2251 | #if EV_USE_REALTIME |
1644 | if (!have_realtime) |
2252 | if (!have_realtime) |
1645 | { |
2253 | { |
1646 | struct timespec ts; |
2254 | struct timespec ts; |
1647 | |
2255 | |
… | |
… | |
1669 | if (!(flags & EVFLAG_NOENV) |
2277 | if (!(flags & EVFLAG_NOENV) |
1670 | && !enable_secure () |
2278 | && !enable_secure () |
1671 | && getenv ("LIBEV_FLAGS")) |
2279 | && getenv ("LIBEV_FLAGS")) |
1672 | flags = atoi (getenv ("LIBEV_FLAGS")); |
2280 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1673 | |
2281 | |
1674 | ev_rt_now = ev_time (); |
2282 | ev_rt_now = ev_time (); |
1675 | mn_now = get_clock (); |
2283 | mn_now = get_clock (); |
1676 | now_floor = mn_now; |
2284 | now_floor = mn_now; |
1677 | rtmn_diff = ev_rt_now - mn_now; |
2285 | rtmn_diff = ev_rt_now - mn_now; |
1678 | #if EV_FEATURE_API |
2286 | #if EV_FEATURE_API |
1679 | invoke_cb = ev_invoke_pending; |
2287 | invoke_cb = ev_invoke_pending; |
1680 | #endif |
2288 | #endif |
1681 | |
2289 | |
1682 | io_blocktime = 0.; |
2290 | io_blocktime = 0.; |
1683 | timeout_blocktime = 0.; |
2291 | timeout_blocktime = 0.; |
1684 | backend = 0; |
2292 | backend = 0; |
1685 | backend_fd = -1; |
2293 | backend_fd = -1; |
1686 | sig_pending = 0; |
2294 | sig_pending = 0; |
1687 | #if EV_ASYNC_ENABLE |
2295 | #if EV_ASYNC_ENABLE |
1688 | async_pending = 0; |
2296 | async_pending = 0; |
1689 | #endif |
2297 | #endif |
|
|
2298 | pipe_write_skipped = 0; |
|
|
2299 | pipe_write_wanted = 0; |
1690 | #if EV_USE_INOTIFY |
2300 | #if EV_USE_INOTIFY |
1691 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2301 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1692 | #endif |
2302 | #endif |
1693 | #if EV_USE_SIGNALFD |
2303 | #if EV_USE_SIGNALFD |
1694 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2304 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1695 | #endif |
2305 | #endif |
1696 | |
2306 | |
1697 | if (!(flags & 0x0000ffffU)) |
2307 | if (!(flags & EVBACKEND_MASK)) |
1698 | flags |= ev_recommended_backends (); |
2308 | flags |= ev_recommended_backends (); |
1699 | |
2309 | |
|
|
2310 | #if EV_USE_IOCP |
|
|
2311 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
2312 | #endif |
1700 | #if EV_USE_PORT |
2313 | #if EV_USE_PORT |
1701 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2314 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1702 | #endif |
2315 | #endif |
1703 | #if EV_USE_KQUEUE |
2316 | #if EV_USE_KQUEUE |
1704 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
2317 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1721 | #endif |
2334 | #endif |
1722 | } |
2335 | } |
1723 | } |
2336 | } |
1724 | |
2337 | |
1725 | /* free up a loop structure */ |
2338 | /* free up a loop structure */ |
1726 | static void noinline |
2339 | void ecb_cold |
1727 | loop_destroy (EV_P) |
2340 | ev_loop_destroy (EV_P) |
1728 | { |
2341 | { |
1729 | int i; |
2342 | int i; |
|
|
2343 | |
|
|
2344 | #if EV_MULTIPLICITY |
|
|
2345 | /* mimic free (0) */ |
|
|
2346 | if (!EV_A) |
|
|
2347 | return; |
|
|
2348 | #endif |
|
|
2349 | |
|
|
2350 | #if EV_CLEANUP_ENABLE |
|
|
2351 | /* queue cleanup watchers (and execute them) */ |
|
|
2352 | if (expect_false (cleanupcnt)) |
|
|
2353 | { |
|
|
2354 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
2355 | EV_INVOKE_PENDING; |
|
|
2356 | } |
|
|
2357 | #endif |
|
|
2358 | |
|
|
2359 | #if EV_CHILD_ENABLE |
|
|
2360 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
|
|
2361 | { |
|
|
2362 | ev_ref (EV_A); /* child watcher */ |
|
|
2363 | ev_signal_stop (EV_A_ &childev); |
|
|
2364 | } |
|
|
2365 | #endif |
1730 | |
2366 | |
1731 | if (ev_is_active (&pipe_w)) |
2367 | if (ev_is_active (&pipe_w)) |
1732 | { |
2368 | { |
1733 | /*ev_ref (EV_A);*/ |
2369 | /*ev_ref (EV_A);*/ |
1734 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2370 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
… | |
… | |
1756 | #endif |
2392 | #endif |
1757 | |
2393 | |
1758 | if (backend_fd >= 0) |
2394 | if (backend_fd >= 0) |
1759 | close (backend_fd); |
2395 | close (backend_fd); |
1760 | |
2396 | |
|
|
2397 | #if EV_USE_IOCP |
|
|
2398 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
2399 | #endif |
1761 | #if EV_USE_PORT |
2400 | #if EV_USE_PORT |
1762 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2401 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1763 | #endif |
2402 | #endif |
1764 | #if EV_USE_KQUEUE |
2403 | #if EV_USE_KQUEUE |
1765 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
2404 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1792 | array_free (periodic, EMPTY); |
2431 | array_free (periodic, EMPTY); |
1793 | #endif |
2432 | #endif |
1794 | #if EV_FORK_ENABLE |
2433 | #if EV_FORK_ENABLE |
1795 | array_free (fork, EMPTY); |
2434 | array_free (fork, EMPTY); |
1796 | #endif |
2435 | #endif |
|
|
2436 | #if EV_CLEANUP_ENABLE |
|
|
2437 | array_free (cleanup, EMPTY); |
|
|
2438 | #endif |
1797 | array_free (prepare, EMPTY); |
2439 | array_free (prepare, EMPTY); |
1798 | array_free (check, EMPTY); |
2440 | array_free (check, EMPTY); |
1799 | #if EV_ASYNC_ENABLE |
2441 | #if EV_ASYNC_ENABLE |
1800 | array_free (async, EMPTY); |
2442 | array_free (async, EMPTY); |
1801 | #endif |
2443 | #endif |
1802 | |
2444 | |
1803 | backend = 0; |
2445 | backend = 0; |
|
|
2446 | |
|
|
2447 | #if EV_MULTIPLICITY |
|
|
2448 | if (ev_is_default_loop (EV_A)) |
|
|
2449 | #endif |
|
|
2450 | ev_default_loop_ptr = 0; |
|
|
2451 | #if EV_MULTIPLICITY |
|
|
2452 | else |
|
|
2453 | ev_free (EV_A); |
|
|
2454 | #endif |
1804 | } |
2455 | } |
1805 | |
2456 | |
1806 | #if EV_USE_INOTIFY |
2457 | #if EV_USE_INOTIFY |
1807 | inline_size void infy_fork (EV_P); |
2458 | inline_size void infy_fork (EV_P); |
1808 | #endif |
2459 | #endif |
… | |
… | |
1823 | infy_fork (EV_A); |
2474 | infy_fork (EV_A); |
1824 | #endif |
2475 | #endif |
1825 | |
2476 | |
1826 | if (ev_is_active (&pipe_w)) |
2477 | if (ev_is_active (&pipe_w)) |
1827 | { |
2478 | { |
1828 | /* this "locks" the handlers against writing to the pipe */ |
2479 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1829 | /* while we modify the fd vars */ |
|
|
1830 | sig_pending = 1; |
|
|
1831 | #if EV_ASYNC_ENABLE |
|
|
1832 | async_pending = 1; |
|
|
1833 | #endif |
|
|
1834 | |
2480 | |
1835 | ev_ref (EV_A); |
2481 | ev_ref (EV_A); |
1836 | ev_io_stop (EV_A_ &pipe_w); |
2482 | ev_io_stop (EV_A_ &pipe_w); |
1837 | |
2483 | |
1838 | #if EV_USE_EVENTFD |
2484 | #if EV_USE_EVENTFD |
… | |
… | |
1856 | postfork = 0; |
2502 | postfork = 0; |
1857 | } |
2503 | } |
1858 | |
2504 | |
1859 | #if EV_MULTIPLICITY |
2505 | #if EV_MULTIPLICITY |
1860 | |
2506 | |
1861 | struct ev_loop * |
2507 | struct ev_loop * ecb_cold |
1862 | ev_loop_new (unsigned int flags) |
2508 | ev_loop_new (unsigned int flags) EV_THROW |
1863 | { |
2509 | { |
1864 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2510 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1865 | |
2511 | |
1866 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2512 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1867 | loop_init (EV_A_ flags); |
2513 | loop_init (EV_A_ flags); |
1868 | |
2514 | |
1869 | if (ev_backend (EV_A)) |
2515 | if (ev_backend (EV_A)) |
1870 | return EV_A; |
2516 | return EV_A; |
1871 | |
2517 | |
|
|
2518 | ev_free (EV_A); |
1872 | return 0; |
2519 | return 0; |
1873 | } |
2520 | } |
1874 | |
2521 | |
1875 | void |
|
|
1876 | ev_loop_destroy (EV_P) |
|
|
1877 | { |
|
|
1878 | loop_destroy (EV_A); |
|
|
1879 | ev_free (loop); |
|
|
1880 | } |
|
|
1881 | |
|
|
1882 | void |
|
|
1883 | ev_loop_fork (EV_P) |
|
|
1884 | { |
|
|
1885 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1886 | } |
|
|
1887 | #endif /* multiplicity */ |
2522 | #endif /* multiplicity */ |
1888 | |
2523 | |
1889 | #if EV_VERIFY |
2524 | #if EV_VERIFY |
1890 | static void noinline |
2525 | static void noinline ecb_cold |
1891 | verify_watcher (EV_P_ W w) |
2526 | verify_watcher (EV_P_ W w) |
1892 | { |
2527 | { |
1893 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2528 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1894 | |
2529 | |
1895 | if (w->pending) |
2530 | if (w->pending) |
1896 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2531 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1897 | } |
2532 | } |
1898 | |
2533 | |
1899 | static void noinline |
2534 | static void noinline ecb_cold |
1900 | verify_heap (EV_P_ ANHE *heap, int N) |
2535 | verify_heap (EV_P_ ANHE *heap, int N) |
1901 | { |
2536 | { |
1902 | int i; |
2537 | int i; |
1903 | |
2538 | |
1904 | for (i = HEAP0; i < N + HEAP0; ++i) |
2539 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
1909 | |
2544 | |
1910 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2545 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1911 | } |
2546 | } |
1912 | } |
2547 | } |
1913 | |
2548 | |
1914 | static void noinline |
2549 | static void noinline ecb_cold |
1915 | array_verify (EV_P_ W *ws, int cnt) |
2550 | array_verify (EV_P_ W *ws, int cnt) |
1916 | { |
2551 | { |
1917 | while (cnt--) |
2552 | while (cnt--) |
1918 | { |
2553 | { |
1919 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
2554 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
1921 | } |
2556 | } |
1922 | } |
2557 | } |
1923 | #endif |
2558 | #endif |
1924 | |
2559 | |
1925 | #if EV_FEATURE_API |
2560 | #if EV_FEATURE_API |
1926 | void |
2561 | void ecb_cold |
1927 | ev_verify (EV_P) |
2562 | ev_verify (EV_P) EV_THROW |
1928 | { |
2563 | { |
1929 | #if EV_VERIFY |
2564 | #if EV_VERIFY |
1930 | int i; |
2565 | int i; |
1931 | WL w; |
2566 | WL w, w2; |
1932 | |
2567 | |
1933 | assert (activecnt >= -1); |
2568 | assert (activecnt >= -1); |
1934 | |
2569 | |
1935 | assert (fdchangemax >= fdchangecnt); |
2570 | assert (fdchangemax >= fdchangecnt); |
1936 | for (i = 0; i < fdchangecnt; ++i) |
2571 | for (i = 0; i < fdchangecnt; ++i) |
1937 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2572 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1938 | |
2573 | |
1939 | assert (anfdmax >= 0); |
2574 | assert (anfdmax >= 0); |
1940 | for (i = 0; i < anfdmax; ++i) |
2575 | for (i = 0; i < anfdmax; ++i) |
|
|
2576 | { |
|
|
2577 | int j = 0; |
|
|
2578 | |
1941 | for (w = anfds [i].head; w; w = w->next) |
2579 | for (w = w2 = anfds [i].head; w; w = w->next) |
1942 | { |
2580 | { |
1943 | verify_watcher (EV_A_ (W)w); |
2581 | verify_watcher (EV_A_ (W)w); |
|
|
2582 | |
|
|
2583 | if (j++ & 1) |
|
|
2584 | { |
|
|
2585 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
2586 | w2 = w2->next; |
|
|
2587 | } |
|
|
2588 | |
1944 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2589 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1945 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2590 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1946 | } |
2591 | } |
|
|
2592 | } |
1947 | |
2593 | |
1948 | assert (timermax >= timercnt); |
2594 | assert (timermax >= timercnt); |
1949 | verify_heap (EV_A_ timers, timercnt); |
2595 | verify_heap (EV_A_ timers, timercnt); |
1950 | |
2596 | |
1951 | #if EV_PERIODIC_ENABLE |
2597 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1966 | #if EV_FORK_ENABLE |
2612 | #if EV_FORK_ENABLE |
1967 | assert (forkmax >= forkcnt); |
2613 | assert (forkmax >= forkcnt); |
1968 | array_verify (EV_A_ (W *)forks, forkcnt); |
2614 | array_verify (EV_A_ (W *)forks, forkcnt); |
1969 | #endif |
2615 | #endif |
1970 | |
2616 | |
|
|
2617 | #if EV_CLEANUP_ENABLE |
|
|
2618 | assert (cleanupmax >= cleanupcnt); |
|
|
2619 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2620 | #endif |
|
|
2621 | |
1971 | #if EV_ASYNC_ENABLE |
2622 | #if EV_ASYNC_ENABLE |
1972 | assert (asyncmax >= asynccnt); |
2623 | assert (asyncmax >= asynccnt); |
1973 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
2624 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1974 | #endif |
2625 | #endif |
1975 | |
2626 | |
… | |
… | |
1992 | #endif |
2643 | #endif |
1993 | } |
2644 | } |
1994 | #endif |
2645 | #endif |
1995 | |
2646 | |
1996 | #if EV_MULTIPLICITY |
2647 | #if EV_MULTIPLICITY |
1997 | struct ev_loop * |
2648 | struct ev_loop * ecb_cold |
1998 | ev_default_loop_init (unsigned int flags) |
|
|
1999 | #else |
2649 | #else |
2000 | int |
2650 | int |
|
|
2651 | #endif |
2001 | ev_default_loop (unsigned int flags) |
2652 | ev_default_loop (unsigned int flags) EV_THROW |
2002 | #endif |
|
|
2003 | { |
2653 | { |
2004 | if (!ev_default_loop_ptr) |
2654 | if (!ev_default_loop_ptr) |
2005 | { |
2655 | { |
2006 | #if EV_MULTIPLICITY |
2656 | #if EV_MULTIPLICITY |
2007 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
2657 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
2026 | |
2676 | |
2027 | return ev_default_loop_ptr; |
2677 | return ev_default_loop_ptr; |
2028 | } |
2678 | } |
2029 | |
2679 | |
2030 | void |
2680 | void |
2031 | ev_default_destroy (void) |
2681 | ev_loop_fork (EV_P) EV_THROW |
2032 | { |
2682 | { |
2033 | #if EV_MULTIPLICITY |
|
|
2034 | EV_P = ev_default_loop_ptr; |
|
|
2035 | #endif |
|
|
2036 | |
|
|
2037 | ev_default_loop_ptr = 0; |
|
|
2038 | |
|
|
2039 | #if EV_CHILD_ENABLE |
|
|
2040 | ev_ref (EV_A); /* child watcher */ |
|
|
2041 | ev_signal_stop (EV_A_ &childev); |
|
|
2042 | #endif |
|
|
2043 | |
|
|
2044 | loop_destroy (EV_A); |
|
|
2045 | } |
|
|
2046 | |
|
|
2047 | void |
|
|
2048 | ev_default_fork (void) |
|
|
2049 | { |
|
|
2050 | #if EV_MULTIPLICITY |
|
|
2051 | EV_P = ev_default_loop_ptr; |
|
|
2052 | #endif |
|
|
2053 | |
|
|
2054 | postfork = 1; /* must be in line with ev_loop_fork */ |
2683 | postfork = 1; /* must be in line with ev_default_fork */ |
2055 | } |
2684 | } |
2056 | |
2685 | |
2057 | /*****************************************************************************/ |
2686 | /*****************************************************************************/ |
2058 | |
2687 | |
2059 | void |
2688 | void |
… | |
… | |
2061 | { |
2690 | { |
2062 | EV_CB_INVOKE ((W)w, revents); |
2691 | EV_CB_INVOKE ((W)w, revents); |
2063 | } |
2692 | } |
2064 | |
2693 | |
2065 | unsigned int |
2694 | unsigned int |
2066 | ev_pending_count (EV_P) |
2695 | ev_pending_count (EV_P) EV_THROW |
2067 | { |
2696 | { |
2068 | int pri; |
2697 | int pri; |
2069 | unsigned int count = 0; |
2698 | unsigned int count = 0; |
2070 | |
2699 | |
2071 | for (pri = NUMPRI; pri--; ) |
2700 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
2075 | } |
2704 | } |
2076 | |
2705 | |
2077 | void noinline |
2706 | void noinline |
2078 | ev_invoke_pending (EV_P) |
2707 | ev_invoke_pending (EV_P) |
2079 | { |
2708 | { |
2080 | int pri; |
2709 | for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */ |
2081 | |
|
|
2082 | for (pri = NUMPRI; pri--; ) |
|
|
2083 | while (pendingcnt [pri]) |
2710 | while (pendingcnt [pendingpri]) |
2084 | { |
2711 | { |
2085 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2712 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2086 | |
|
|
2087 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
2088 | /* ^ this is no longer true, as pending_w could be here */ |
|
|
2089 | |
2713 | |
2090 | p->w->pending = 0; |
2714 | p->w->pending = 0; |
2091 | EV_CB_INVOKE (p->w, p->events); |
2715 | EV_CB_INVOKE (p->w, p->events); |
2092 | EV_FREQUENT_CHECK; |
2716 | EV_FREQUENT_CHECK; |
2093 | } |
2717 | } |
… | |
… | |
2155 | feed_reverse_done (EV_A_ EV_TIMER); |
2779 | feed_reverse_done (EV_A_ EV_TIMER); |
2156 | } |
2780 | } |
2157 | } |
2781 | } |
2158 | |
2782 | |
2159 | #if EV_PERIODIC_ENABLE |
2783 | #if EV_PERIODIC_ENABLE |
|
|
2784 | |
|
|
2785 | static void noinline |
|
|
2786 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
2787 | { |
|
|
2788 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
2789 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
2790 | |
|
|
2791 | /* the above almost always errs on the low side */ |
|
|
2792 | while (at <= ev_rt_now) |
|
|
2793 | { |
|
|
2794 | ev_tstamp nat = at + w->interval; |
|
|
2795 | |
|
|
2796 | /* when resolution fails us, we use ev_rt_now */ |
|
|
2797 | if (expect_false (nat == at)) |
|
|
2798 | { |
|
|
2799 | at = ev_rt_now; |
|
|
2800 | break; |
|
|
2801 | } |
|
|
2802 | |
|
|
2803 | at = nat; |
|
|
2804 | } |
|
|
2805 | |
|
|
2806 | ev_at (w) = at; |
|
|
2807 | } |
|
|
2808 | |
2160 | /* make periodics pending */ |
2809 | /* make periodics pending */ |
2161 | inline_size void |
2810 | inline_size void |
2162 | periodics_reify (EV_P) |
2811 | periodics_reify (EV_P) |
2163 | { |
2812 | { |
2164 | EV_FREQUENT_CHECK; |
2813 | EV_FREQUENT_CHECK; |
2165 | |
2814 | |
2166 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2815 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2167 | { |
2816 | { |
2168 | int feed_count = 0; |
|
|
2169 | |
|
|
2170 | do |
2817 | do |
2171 | { |
2818 | { |
2172 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2819 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2173 | |
2820 | |
2174 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
2821 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
2183 | ANHE_at_cache (periodics [HEAP0]); |
2830 | ANHE_at_cache (periodics [HEAP0]); |
2184 | downheap (periodics, periodiccnt, HEAP0); |
2831 | downheap (periodics, periodiccnt, HEAP0); |
2185 | } |
2832 | } |
2186 | else if (w->interval) |
2833 | else if (w->interval) |
2187 | { |
2834 | { |
2188 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2835 | periodic_recalc (EV_A_ w); |
2189 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2190 | /* this might happen because of floating point inexactness */ |
|
|
2191 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2192 | { |
|
|
2193 | ev_at (w) += w->interval; |
|
|
2194 | |
|
|
2195 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2196 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2197 | /* has effectively asked to get triggered more often than possible */ |
|
|
2198 | if (ev_at (w) < ev_rt_now) |
|
|
2199 | ev_at (w) = ev_rt_now; |
|
|
2200 | } |
|
|
2201 | |
|
|
2202 | ANHE_at_cache (periodics [HEAP0]); |
2836 | ANHE_at_cache (periodics [HEAP0]); |
2203 | downheap (periodics, periodiccnt, HEAP0); |
2837 | downheap (periodics, periodiccnt, HEAP0); |
2204 | } |
2838 | } |
2205 | else |
2839 | else |
2206 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
2840 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
… | |
… | |
2214 | } |
2848 | } |
2215 | } |
2849 | } |
2216 | |
2850 | |
2217 | /* simply recalculate all periodics */ |
2851 | /* simply recalculate all periodics */ |
2218 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2852 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2219 | static void noinline |
2853 | static void noinline ecb_cold |
2220 | periodics_reschedule (EV_P) |
2854 | periodics_reschedule (EV_P) |
2221 | { |
2855 | { |
2222 | int i; |
2856 | int i; |
2223 | |
2857 | |
2224 | /* adjust periodics after time jump */ |
2858 | /* adjust periodics after time jump */ |
… | |
… | |
2227 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2861 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2228 | |
2862 | |
2229 | if (w->reschedule_cb) |
2863 | if (w->reschedule_cb) |
2230 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2864 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2231 | else if (w->interval) |
2865 | else if (w->interval) |
2232 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2866 | periodic_recalc (EV_A_ w); |
2233 | |
2867 | |
2234 | ANHE_at_cache (periodics [i]); |
2868 | ANHE_at_cache (periodics [i]); |
2235 | } |
2869 | } |
2236 | |
2870 | |
2237 | reheap (periodics, periodiccnt); |
2871 | reheap (periodics, periodiccnt); |
2238 | } |
2872 | } |
2239 | #endif |
2873 | #endif |
2240 | |
2874 | |
2241 | /* adjust all timers by a given offset */ |
2875 | /* adjust all timers by a given offset */ |
2242 | static void noinline |
2876 | static void noinline ecb_cold |
2243 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2877 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2244 | { |
2878 | { |
2245 | int i; |
2879 | int i; |
2246 | |
2880 | |
2247 | for (i = 0; i < timercnt; ++i) |
2881 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
2284 | * doesn't hurt either as we only do this on time-jumps or |
2918 | * doesn't hurt either as we only do this on time-jumps or |
2285 | * in the unlikely event of having been preempted here. |
2919 | * in the unlikely event of having been preempted here. |
2286 | */ |
2920 | */ |
2287 | for (i = 4; --i; ) |
2921 | for (i = 4; --i; ) |
2288 | { |
2922 | { |
|
|
2923 | ev_tstamp diff; |
2289 | rtmn_diff = ev_rt_now - mn_now; |
2924 | rtmn_diff = ev_rt_now - mn_now; |
2290 | |
2925 | |
|
|
2926 | diff = odiff - rtmn_diff; |
|
|
2927 | |
2291 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
2928 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
2292 | return; /* all is well */ |
2929 | return; /* all is well */ |
2293 | |
2930 | |
2294 | ev_rt_now = ev_time (); |
2931 | ev_rt_now = ev_time (); |
2295 | mn_now = get_clock (); |
2932 | mn_now = get_clock (); |
2296 | now_floor = mn_now; |
2933 | now_floor = mn_now; |
… | |
… | |
2318 | |
2955 | |
2319 | mn_now = ev_rt_now; |
2956 | mn_now = ev_rt_now; |
2320 | } |
2957 | } |
2321 | } |
2958 | } |
2322 | |
2959 | |
2323 | void |
2960 | int |
2324 | ev_run (EV_P_ int flags) |
2961 | ev_run (EV_P_ int flags) |
2325 | { |
2962 | { |
2326 | #if EV_FEATURE_API |
2963 | #if EV_FEATURE_API |
2327 | ++loop_depth; |
2964 | ++loop_depth; |
2328 | #endif |
2965 | #endif |
… | |
… | |
2386 | ev_tstamp prev_mn_now = mn_now; |
3023 | ev_tstamp prev_mn_now = mn_now; |
2387 | |
3024 | |
2388 | /* update time to cancel out callback processing overhead */ |
3025 | /* update time to cancel out callback processing overhead */ |
2389 | time_update (EV_A_ 1e100); |
3026 | time_update (EV_A_ 1e100); |
2390 | |
3027 | |
|
|
3028 | /* from now on, we want a pipe-wake-up */ |
|
|
3029 | pipe_write_wanted = 1; |
|
|
3030 | |
|
|
3031 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
3032 | |
2391 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
3033 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2392 | { |
3034 | { |
2393 | waittime = MAX_BLOCKTIME; |
3035 | waittime = MAX_BLOCKTIME; |
2394 | |
3036 | |
2395 | if (timercnt) |
3037 | if (timercnt) |
2396 | { |
3038 | { |
2397 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
3039 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
2398 | if (waittime > to) waittime = to; |
3040 | if (waittime > to) waittime = to; |
2399 | } |
3041 | } |
2400 | |
3042 | |
2401 | #if EV_PERIODIC_ENABLE |
3043 | #if EV_PERIODIC_ENABLE |
2402 | if (periodiccnt) |
3044 | if (periodiccnt) |
2403 | { |
3045 | { |
2404 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
3046 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
2405 | if (waittime > to) waittime = to; |
3047 | if (waittime > to) waittime = to; |
2406 | } |
3048 | } |
2407 | #endif |
3049 | #endif |
2408 | |
3050 | |
2409 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3051 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2410 | if (expect_false (waittime < timeout_blocktime)) |
3052 | if (expect_false (waittime < timeout_blocktime)) |
2411 | waittime = timeout_blocktime; |
3053 | waittime = timeout_blocktime; |
|
|
3054 | |
|
|
3055 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
3056 | /* to pass a minimum nonzero value to the backend */ |
|
|
3057 | if (expect_false (waittime < backend_mintime)) |
|
|
3058 | waittime = backend_mintime; |
2412 | |
3059 | |
2413 | /* extra check because io_blocktime is commonly 0 */ |
3060 | /* extra check because io_blocktime is commonly 0 */ |
2414 | if (expect_false (io_blocktime)) |
3061 | if (expect_false (io_blocktime)) |
2415 | { |
3062 | { |
2416 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3063 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
2417 | |
3064 | |
2418 | if (sleeptime > waittime - backend_fudge) |
3065 | if (sleeptime > waittime - backend_mintime) |
2419 | sleeptime = waittime - backend_fudge; |
3066 | sleeptime = waittime - backend_mintime; |
2420 | |
3067 | |
2421 | if (expect_true (sleeptime > 0.)) |
3068 | if (expect_true (sleeptime > 0.)) |
2422 | { |
3069 | { |
2423 | ev_sleep (sleeptime); |
3070 | ev_sleep (sleeptime); |
2424 | waittime -= sleeptime; |
3071 | waittime -= sleeptime; |
… | |
… | |
2431 | #endif |
3078 | #endif |
2432 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
3079 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2433 | backend_poll (EV_A_ waittime); |
3080 | backend_poll (EV_A_ waittime); |
2434 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3081 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2435 | |
3082 | |
|
|
3083 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
3084 | |
|
|
3085 | if (pipe_write_skipped) |
|
|
3086 | { |
|
|
3087 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
3088 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3089 | } |
|
|
3090 | |
|
|
3091 | |
2436 | /* update ev_rt_now, do magic */ |
3092 | /* update ev_rt_now, do magic */ |
2437 | time_update (EV_A_ waittime + sleeptime); |
3093 | time_update (EV_A_ waittime + sleeptime); |
2438 | } |
3094 | } |
2439 | |
3095 | |
2440 | /* queue pending timers and reschedule them */ |
3096 | /* queue pending timers and reschedule them */ |
… | |
… | |
2466 | loop_done = EVBREAK_CANCEL; |
3122 | loop_done = EVBREAK_CANCEL; |
2467 | |
3123 | |
2468 | #if EV_FEATURE_API |
3124 | #if EV_FEATURE_API |
2469 | --loop_depth; |
3125 | --loop_depth; |
2470 | #endif |
3126 | #endif |
|
|
3127 | |
|
|
3128 | return activecnt; |
2471 | } |
3129 | } |
2472 | |
3130 | |
2473 | void |
3131 | void |
2474 | ev_break (EV_P_ int how) |
3132 | ev_break (EV_P_ int how) EV_THROW |
2475 | { |
3133 | { |
2476 | loop_done = how; |
3134 | loop_done = how; |
2477 | } |
3135 | } |
2478 | |
3136 | |
2479 | void |
3137 | void |
2480 | ev_ref (EV_P) |
3138 | ev_ref (EV_P) EV_THROW |
2481 | { |
3139 | { |
2482 | ++activecnt; |
3140 | ++activecnt; |
2483 | } |
3141 | } |
2484 | |
3142 | |
2485 | void |
3143 | void |
2486 | ev_unref (EV_P) |
3144 | ev_unref (EV_P) EV_THROW |
2487 | { |
3145 | { |
2488 | --activecnt; |
3146 | --activecnt; |
2489 | } |
3147 | } |
2490 | |
3148 | |
2491 | void |
3149 | void |
2492 | ev_now_update (EV_P) |
3150 | ev_now_update (EV_P) EV_THROW |
2493 | { |
3151 | { |
2494 | time_update (EV_A_ 1e100); |
3152 | time_update (EV_A_ 1e100); |
2495 | } |
3153 | } |
2496 | |
3154 | |
2497 | void |
3155 | void |
2498 | ev_suspend (EV_P) |
3156 | ev_suspend (EV_P) EV_THROW |
2499 | { |
3157 | { |
2500 | ev_now_update (EV_A); |
3158 | ev_now_update (EV_A); |
2501 | } |
3159 | } |
2502 | |
3160 | |
2503 | void |
3161 | void |
2504 | ev_resume (EV_P) |
3162 | ev_resume (EV_P) EV_THROW |
2505 | { |
3163 | { |
2506 | ev_tstamp mn_prev = mn_now; |
3164 | ev_tstamp mn_prev = mn_now; |
2507 | |
3165 | |
2508 | ev_now_update (EV_A); |
3166 | ev_now_update (EV_A); |
2509 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3167 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
2548 | w->pending = 0; |
3206 | w->pending = 0; |
2549 | } |
3207 | } |
2550 | } |
3208 | } |
2551 | |
3209 | |
2552 | int |
3210 | int |
2553 | ev_clear_pending (EV_P_ void *w) |
3211 | ev_clear_pending (EV_P_ void *w) EV_THROW |
2554 | { |
3212 | { |
2555 | W w_ = (W)w; |
3213 | W w_ = (W)w; |
2556 | int pending = w_->pending; |
3214 | int pending = w_->pending; |
2557 | |
3215 | |
2558 | if (expect_true (pending)) |
3216 | if (expect_true (pending)) |
… | |
… | |
2591 | } |
3249 | } |
2592 | |
3250 | |
2593 | /*****************************************************************************/ |
3251 | /*****************************************************************************/ |
2594 | |
3252 | |
2595 | void noinline |
3253 | void noinline |
2596 | ev_io_start (EV_P_ ev_io *w) |
3254 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
2597 | { |
3255 | { |
2598 | int fd = w->fd; |
3256 | int fd = w->fd; |
2599 | |
3257 | |
2600 | if (expect_false (ev_is_active (w))) |
3258 | if (expect_false (ev_is_active (w))) |
2601 | return; |
3259 | return; |
… | |
… | |
2607 | |
3265 | |
2608 | ev_start (EV_A_ (W)w, 1); |
3266 | ev_start (EV_A_ (W)w, 1); |
2609 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3267 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2610 | wlist_add (&anfds[fd].head, (WL)w); |
3268 | wlist_add (&anfds[fd].head, (WL)w); |
2611 | |
3269 | |
|
|
3270 | /* common bug, apparently */ |
|
|
3271 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
|
|
3272 | |
2612 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
3273 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2613 | w->events &= ~EV__IOFDSET; |
3274 | w->events &= ~EV__IOFDSET; |
2614 | |
3275 | |
2615 | EV_FREQUENT_CHECK; |
3276 | EV_FREQUENT_CHECK; |
2616 | } |
3277 | } |
2617 | |
3278 | |
2618 | void noinline |
3279 | void noinline |
2619 | ev_io_stop (EV_P_ ev_io *w) |
3280 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
2620 | { |
3281 | { |
2621 | clear_pending (EV_A_ (W)w); |
3282 | clear_pending (EV_A_ (W)w); |
2622 | if (expect_false (!ev_is_active (w))) |
3283 | if (expect_false (!ev_is_active (w))) |
2623 | return; |
3284 | return; |
2624 | |
3285 | |
… | |
… | |
2633 | |
3294 | |
2634 | EV_FREQUENT_CHECK; |
3295 | EV_FREQUENT_CHECK; |
2635 | } |
3296 | } |
2636 | |
3297 | |
2637 | void noinline |
3298 | void noinline |
2638 | ev_timer_start (EV_P_ ev_timer *w) |
3299 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
2639 | { |
3300 | { |
2640 | if (expect_false (ev_is_active (w))) |
3301 | if (expect_false (ev_is_active (w))) |
2641 | return; |
3302 | return; |
2642 | |
3303 | |
2643 | ev_at (w) += mn_now; |
3304 | ev_at (w) += mn_now; |
… | |
… | |
2657 | |
3318 | |
2658 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3319 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2659 | } |
3320 | } |
2660 | |
3321 | |
2661 | void noinline |
3322 | void noinline |
2662 | ev_timer_stop (EV_P_ ev_timer *w) |
3323 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
2663 | { |
3324 | { |
2664 | clear_pending (EV_A_ (W)w); |
3325 | clear_pending (EV_A_ (W)w); |
2665 | if (expect_false (!ev_is_active (w))) |
3326 | if (expect_false (!ev_is_active (w))) |
2666 | return; |
3327 | return; |
2667 | |
3328 | |
… | |
… | |
2687 | |
3348 | |
2688 | EV_FREQUENT_CHECK; |
3349 | EV_FREQUENT_CHECK; |
2689 | } |
3350 | } |
2690 | |
3351 | |
2691 | void noinline |
3352 | void noinline |
2692 | ev_timer_again (EV_P_ ev_timer *w) |
3353 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
2693 | { |
3354 | { |
2694 | EV_FREQUENT_CHECK; |
3355 | EV_FREQUENT_CHECK; |
|
|
3356 | |
|
|
3357 | clear_pending (EV_A_ (W)w); |
2695 | |
3358 | |
2696 | if (ev_is_active (w)) |
3359 | if (ev_is_active (w)) |
2697 | { |
3360 | { |
2698 | if (w->repeat) |
3361 | if (w->repeat) |
2699 | { |
3362 | { |
… | |
… | |
2712 | |
3375 | |
2713 | EV_FREQUENT_CHECK; |
3376 | EV_FREQUENT_CHECK; |
2714 | } |
3377 | } |
2715 | |
3378 | |
2716 | ev_tstamp |
3379 | ev_tstamp |
2717 | ev_timer_remaining (EV_P_ ev_timer *w) |
3380 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
2718 | { |
3381 | { |
2719 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3382 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
2720 | } |
3383 | } |
2721 | |
3384 | |
2722 | #if EV_PERIODIC_ENABLE |
3385 | #if EV_PERIODIC_ENABLE |
2723 | void noinline |
3386 | void noinline |
2724 | ev_periodic_start (EV_P_ ev_periodic *w) |
3387 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
2725 | { |
3388 | { |
2726 | if (expect_false (ev_is_active (w))) |
3389 | if (expect_false (ev_is_active (w))) |
2727 | return; |
3390 | return; |
2728 | |
3391 | |
2729 | if (w->reschedule_cb) |
3392 | if (w->reschedule_cb) |
2730 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3393 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2731 | else if (w->interval) |
3394 | else if (w->interval) |
2732 | { |
3395 | { |
2733 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
3396 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2734 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
3397 | periodic_recalc (EV_A_ w); |
2735 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2736 | } |
3398 | } |
2737 | else |
3399 | else |
2738 | ev_at (w) = w->offset; |
3400 | ev_at (w) = w->offset; |
2739 | |
3401 | |
2740 | EV_FREQUENT_CHECK; |
3402 | EV_FREQUENT_CHECK; |
… | |
… | |
2750 | |
3412 | |
2751 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3413 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2752 | } |
3414 | } |
2753 | |
3415 | |
2754 | void noinline |
3416 | void noinline |
2755 | ev_periodic_stop (EV_P_ ev_periodic *w) |
3417 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
2756 | { |
3418 | { |
2757 | clear_pending (EV_A_ (W)w); |
3419 | clear_pending (EV_A_ (W)w); |
2758 | if (expect_false (!ev_is_active (w))) |
3420 | if (expect_false (!ev_is_active (w))) |
2759 | return; |
3421 | return; |
2760 | |
3422 | |
… | |
… | |
2778 | |
3440 | |
2779 | EV_FREQUENT_CHECK; |
3441 | EV_FREQUENT_CHECK; |
2780 | } |
3442 | } |
2781 | |
3443 | |
2782 | void noinline |
3444 | void noinline |
2783 | ev_periodic_again (EV_P_ ev_periodic *w) |
3445 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
2784 | { |
3446 | { |
2785 | /* TODO: use adjustheap and recalculation */ |
3447 | /* TODO: use adjustheap and recalculation */ |
2786 | ev_periodic_stop (EV_A_ w); |
3448 | ev_periodic_stop (EV_A_ w); |
2787 | ev_periodic_start (EV_A_ w); |
3449 | ev_periodic_start (EV_A_ w); |
2788 | } |
3450 | } |
… | |
… | |
2793 | #endif |
3455 | #endif |
2794 | |
3456 | |
2795 | #if EV_SIGNAL_ENABLE |
3457 | #if EV_SIGNAL_ENABLE |
2796 | |
3458 | |
2797 | void noinline |
3459 | void noinline |
2798 | ev_signal_start (EV_P_ ev_signal *w) |
3460 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
2799 | { |
3461 | { |
2800 | if (expect_false (ev_is_active (w))) |
3462 | if (expect_false (ev_is_active (w))) |
2801 | return; |
3463 | return; |
2802 | |
3464 | |
2803 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
3465 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
… | |
… | |
2861 | sa.sa_handler = ev_sighandler; |
3523 | sa.sa_handler = ev_sighandler; |
2862 | sigfillset (&sa.sa_mask); |
3524 | sigfillset (&sa.sa_mask); |
2863 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
3525 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2864 | sigaction (w->signum, &sa, 0); |
3526 | sigaction (w->signum, &sa, 0); |
2865 | |
3527 | |
|
|
3528 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
3529 | { |
2866 | sigemptyset (&sa.sa_mask); |
3530 | sigemptyset (&sa.sa_mask); |
2867 | sigaddset (&sa.sa_mask, w->signum); |
3531 | sigaddset (&sa.sa_mask, w->signum); |
2868 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
3532 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
3533 | } |
2869 | #endif |
3534 | #endif |
2870 | } |
3535 | } |
2871 | |
3536 | |
2872 | EV_FREQUENT_CHECK; |
3537 | EV_FREQUENT_CHECK; |
2873 | } |
3538 | } |
2874 | |
3539 | |
2875 | void noinline |
3540 | void noinline |
2876 | ev_signal_stop (EV_P_ ev_signal *w) |
3541 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
2877 | { |
3542 | { |
2878 | clear_pending (EV_A_ (W)w); |
3543 | clear_pending (EV_A_ (W)w); |
2879 | if (expect_false (!ev_is_active (w))) |
3544 | if (expect_false (!ev_is_active (w))) |
2880 | return; |
3545 | return; |
2881 | |
3546 | |
… | |
… | |
2912 | #endif |
3577 | #endif |
2913 | |
3578 | |
2914 | #if EV_CHILD_ENABLE |
3579 | #if EV_CHILD_ENABLE |
2915 | |
3580 | |
2916 | void |
3581 | void |
2917 | ev_child_start (EV_P_ ev_child *w) |
3582 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
2918 | { |
3583 | { |
2919 | #if EV_MULTIPLICITY |
3584 | #if EV_MULTIPLICITY |
2920 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3585 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2921 | #endif |
3586 | #endif |
2922 | if (expect_false (ev_is_active (w))) |
3587 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2929 | |
3594 | |
2930 | EV_FREQUENT_CHECK; |
3595 | EV_FREQUENT_CHECK; |
2931 | } |
3596 | } |
2932 | |
3597 | |
2933 | void |
3598 | void |
2934 | ev_child_stop (EV_P_ ev_child *w) |
3599 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
2935 | { |
3600 | { |
2936 | clear_pending (EV_A_ (W)w); |
3601 | clear_pending (EV_A_ (W)w); |
2937 | if (expect_false (!ev_is_active (w))) |
3602 | if (expect_false (!ev_is_active (w))) |
2938 | return; |
3603 | return; |
2939 | |
3604 | |
… | |
… | |
3014 | if (!pend || pend == path) |
3679 | if (!pend || pend == path) |
3015 | break; |
3680 | break; |
3016 | |
3681 | |
3017 | *pend = 0; |
3682 | *pend = 0; |
3018 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3683 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3019 | } |
3684 | } |
3020 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3685 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3021 | } |
3686 | } |
3022 | } |
3687 | } |
3023 | |
3688 | |
3024 | if (w->wd >= 0) |
3689 | if (w->wd >= 0) |
… | |
… | |
3091 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3756 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3092 | ofs += sizeof (struct inotify_event) + ev->len; |
3757 | ofs += sizeof (struct inotify_event) + ev->len; |
3093 | } |
3758 | } |
3094 | } |
3759 | } |
3095 | |
3760 | |
3096 | inline_size void |
3761 | inline_size void ecb_cold |
3097 | ev_check_2625 (EV_P) |
3762 | ev_check_2625 (EV_P) |
3098 | { |
3763 | { |
3099 | /* kernels < 2.6.25 are borked |
3764 | /* kernels < 2.6.25 are borked |
3100 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3765 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3101 | */ |
3766 | */ |
… | |
… | |
3106 | } |
3771 | } |
3107 | |
3772 | |
3108 | inline_size int |
3773 | inline_size int |
3109 | infy_newfd (void) |
3774 | infy_newfd (void) |
3110 | { |
3775 | { |
3111 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
3776 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
3112 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3777 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3113 | if (fd >= 0) |
3778 | if (fd >= 0) |
3114 | return fd; |
3779 | return fd; |
3115 | #endif |
3780 | #endif |
3116 | return inotify_init (); |
3781 | return inotify_init (); |
… | |
… | |
3191 | #else |
3856 | #else |
3192 | # define EV_LSTAT(p,b) lstat (p, b) |
3857 | # define EV_LSTAT(p,b) lstat (p, b) |
3193 | #endif |
3858 | #endif |
3194 | |
3859 | |
3195 | void |
3860 | void |
3196 | ev_stat_stat (EV_P_ ev_stat *w) |
3861 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
3197 | { |
3862 | { |
3198 | if (lstat (w->path, &w->attr) < 0) |
3863 | if (lstat (w->path, &w->attr) < 0) |
3199 | w->attr.st_nlink = 0; |
3864 | w->attr.st_nlink = 0; |
3200 | else if (!w->attr.st_nlink) |
3865 | else if (!w->attr.st_nlink) |
3201 | w->attr.st_nlink = 1; |
3866 | w->attr.st_nlink = 1; |
… | |
… | |
3240 | ev_feed_event (EV_A_ w, EV_STAT); |
3905 | ev_feed_event (EV_A_ w, EV_STAT); |
3241 | } |
3906 | } |
3242 | } |
3907 | } |
3243 | |
3908 | |
3244 | void |
3909 | void |
3245 | ev_stat_start (EV_P_ ev_stat *w) |
3910 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
3246 | { |
3911 | { |
3247 | if (expect_false (ev_is_active (w))) |
3912 | if (expect_false (ev_is_active (w))) |
3248 | return; |
3913 | return; |
3249 | |
3914 | |
3250 | ev_stat_stat (EV_A_ w); |
3915 | ev_stat_stat (EV_A_ w); |
… | |
… | |
3271 | |
3936 | |
3272 | EV_FREQUENT_CHECK; |
3937 | EV_FREQUENT_CHECK; |
3273 | } |
3938 | } |
3274 | |
3939 | |
3275 | void |
3940 | void |
3276 | ev_stat_stop (EV_P_ ev_stat *w) |
3941 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
3277 | { |
3942 | { |
3278 | clear_pending (EV_A_ (W)w); |
3943 | clear_pending (EV_A_ (W)w); |
3279 | if (expect_false (!ev_is_active (w))) |
3944 | if (expect_false (!ev_is_active (w))) |
3280 | return; |
3945 | return; |
3281 | |
3946 | |
… | |
… | |
3297 | } |
3962 | } |
3298 | #endif |
3963 | #endif |
3299 | |
3964 | |
3300 | #if EV_IDLE_ENABLE |
3965 | #if EV_IDLE_ENABLE |
3301 | void |
3966 | void |
3302 | ev_idle_start (EV_P_ ev_idle *w) |
3967 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
3303 | { |
3968 | { |
3304 | if (expect_false (ev_is_active (w))) |
3969 | if (expect_false (ev_is_active (w))) |
3305 | return; |
3970 | return; |
3306 | |
3971 | |
3307 | pri_adjust (EV_A_ (W)w); |
3972 | pri_adjust (EV_A_ (W)w); |
… | |
… | |
3320 | |
3985 | |
3321 | EV_FREQUENT_CHECK; |
3986 | EV_FREQUENT_CHECK; |
3322 | } |
3987 | } |
3323 | |
3988 | |
3324 | void |
3989 | void |
3325 | ev_idle_stop (EV_P_ ev_idle *w) |
3990 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
3326 | { |
3991 | { |
3327 | clear_pending (EV_A_ (W)w); |
3992 | clear_pending (EV_A_ (W)w); |
3328 | if (expect_false (!ev_is_active (w))) |
3993 | if (expect_false (!ev_is_active (w))) |
3329 | return; |
3994 | return; |
3330 | |
3995 | |
… | |
… | |
3344 | } |
4009 | } |
3345 | #endif |
4010 | #endif |
3346 | |
4011 | |
3347 | #if EV_PREPARE_ENABLE |
4012 | #if EV_PREPARE_ENABLE |
3348 | void |
4013 | void |
3349 | ev_prepare_start (EV_P_ ev_prepare *w) |
4014 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
3350 | { |
4015 | { |
3351 | if (expect_false (ev_is_active (w))) |
4016 | if (expect_false (ev_is_active (w))) |
3352 | return; |
4017 | return; |
3353 | |
4018 | |
3354 | EV_FREQUENT_CHECK; |
4019 | EV_FREQUENT_CHECK; |
… | |
… | |
3359 | |
4024 | |
3360 | EV_FREQUENT_CHECK; |
4025 | EV_FREQUENT_CHECK; |
3361 | } |
4026 | } |
3362 | |
4027 | |
3363 | void |
4028 | void |
3364 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4029 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
3365 | { |
4030 | { |
3366 | clear_pending (EV_A_ (W)w); |
4031 | clear_pending (EV_A_ (W)w); |
3367 | if (expect_false (!ev_is_active (w))) |
4032 | if (expect_false (!ev_is_active (w))) |
3368 | return; |
4033 | return; |
3369 | |
4034 | |
… | |
… | |
3382 | } |
4047 | } |
3383 | #endif |
4048 | #endif |
3384 | |
4049 | |
3385 | #if EV_CHECK_ENABLE |
4050 | #if EV_CHECK_ENABLE |
3386 | void |
4051 | void |
3387 | ev_check_start (EV_P_ ev_check *w) |
4052 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
3388 | { |
4053 | { |
3389 | if (expect_false (ev_is_active (w))) |
4054 | if (expect_false (ev_is_active (w))) |
3390 | return; |
4055 | return; |
3391 | |
4056 | |
3392 | EV_FREQUENT_CHECK; |
4057 | EV_FREQUENT_CHECK; |
… | |
… | |
3397 | |
4062 | |
3398 | EV_FREQUENT_CHECK; |
4063 | EV_FREQUENT_CHECK; |
3399 | } |
4064 | } |
3400 | |
4065 | |
3401 | void |
4066 | void |
3402 | ev_check_stop (EV_P_ ev_check *w) |
4067 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
3403 | { |
4068 | { |
3404 | clear_pending (EV_A_ (W)w); |
4069 | clear_pending (EV_A_ (W)w); |
3405 | if (expect_false (!ev_is_active (w))) |
4070 | if (expect_false (!ev_is_active (w))) |
3406 | return; |
4071 | return; |
3407 | |
4072 | |
… | |
… | |
3420 | } |
4085 | } |
3421 | #endif |
4086 | #endif |
3422 | |
4087 | |
3423 | #if EV_EMBED_ENABLE |
4088 | #if EV_EMBED_ENABLE |
3424 | void noinline |
4089 | void noinline |
3425 | ev_embed_sweep (EV_P_ ev_embed *w) |
4090 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
3426 | { |
4091 | { |
3427 | ev_run (w->other, EVRUN_NOWAIT); |
4092 | ev_run (w->other, EVRUN_NOWAIT); |
3428 | } |
4093 | } |
3429 | |
4094 | |
3430 | static void |
4095 | static void |
… | |
… | |
3478 | ev_idle_stop (EV_A_ idle); |
4143 | ev_idle_stop (EV_A_ idle); |
3479 | } |
4144 | } |
3480 | #endif |
4145 | #endif |
3481 | |
4146 | |
3482 | void |
4147 | void |
3483 | ev_embed_start (EV_P_ ev_embed *w) |
4148 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
3484 | { |
4149 | { |
3485 | if (expect_false (ev_is_active (w))) |
4150 | if (expect_false (ev_is_active (w))) |
3486 | return; |
4151 | return; |
3487 | |
4152 | |
3488 | { |
4153 | { |
… | |
… | |
3509 | |
4174 | |
3510 | EV_FREQUENT_CHECK; |
4175 | EV_FREQUENT_CHECK; |
3511 | } |
4176 | } |
3512 | |
4177 | |
3513 | void |
4178 | void |
3514 | ev_embed_stop (EV_P_ ev_embed *w) |
4179 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
3515 | { |
4180 | { |
3516 | clear_pending (EV_A_ (W)w); |
4181 | clear_pending (EV_A_ (W)w); |
3517 | if (expect_false (!ev_is_active (w))) |
4182 | if (expect_false (!ev_is_active (w))) |
3518 | return; |
4183 | return; |
3519 | |
4184 | |
… | |
… | |
3529 | } |
4194 | } |
3530 | #endif |
4195 | #endif |
3531 | |
4196 | |
3532 | #if EV_FORK_ENABLE |
4197 | #if EV_FORK_ENABLE |
3533 | void |
4198 | void |
3534 | ev_fork_start (EV_P_ ev_fork *w) |
4199 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
3535 | { |
4200 | { |
3536 | if (expect_false (ev_is_active (w))) |
4201 | if (expect_false (ev_is_active (w))) |
3537 | return; |
4202 | return; |
3538 | |
4203 | |
3539 | EV_FREQUENT_CHECK; |
4204 | EV_FREQUENT_CHECK; |
… | |
… | |
3544 | |
4209 | |
3545 | EV_FREQUENT_CHECK; |
4210 | EV_FREQUENT_CHECK; |
3546 | } |
4211 | } |
3547 | |
4212 | |
3548 | void |
4213 | void |
3549 | ev_fork_stop (EV_P_ ev_fork *w) |
4214 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
3550 | { |
4215 | { |
3551 | clear_pending (EV_A_ (W)w); |
4216 | clear_pending (EV_A_ (W)w); |
3552 | if (expect_false (!ev_is_active (w))) |
4217 | if (expect_false (!ev_is_active (w))) |
3553 | return; |
4218 | return; |
3554 | |
4219 | |
… | |
… | |
3565 | |
4230 | |
3566 | EV_FREQUENT_CHECK; |
4231 | EV_FREQUENT_CHECK; |
3567 | } |
4232 | } |
3568 | #endif |
4233 | #endif |
3569 | |
4234 | |
|
|
4235 | #if EV_CLEANUP_ENABLE |
|
|
4236 | void |
|
|
4237 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
|
|
4238 | { |
|
|
4239 | if (expect_false (ev_is_active (w))) |
|
|
4240 | return; |
|
|
4241 | |
|
|
4242 | EV_FREQUENT_CHECK; |
|
|
4243 | |
|
|
4244 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
4245 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
4246 | cleanups [cleanupcnt - 1] = w; |
|
|
4247 | |
|
|
4248 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
4249 | ev_unref (EV_A); |
|
|
4250 | EV_FREQUENT_CHECK; |
|
|
4251 | } |
|
|
4252 | |
|
|
4253 | void |
|
|
4254 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
|
|
4255 | { |
|
|
4256 | clear_pending (EV_A_ (W)w); |
|
|
4257 | if (expect_false (!ev_is_active (w))) |
|
|
4258 | return; |
|
|
4259 | |
|
|
4260 | EV_FREQUENT_CHECK; |
|
|
4261 | ev_ref (EV_A); |
|
|
4262 | |
|
|
4263 | { |
|
|
4264 | int active = ev_active (w); |
|
|
4265 | |
|
|
4266 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
4267 | ev_active (cleanups [active - 1]) = active; |
|
|
4268 | } |
|
|
4269 | |
|
|
4270 | ev_stop (EV_A_ (W)w); |
|
|
4271 | |
|
|
4272 | EV_FREQUENT_CHECK; |
|
|
4273 | } |
|
|
4274 | #endif |
|
|
4275 | |
3570 | #if EV_ASYNC_ENABLE |
4276 | #if EV_ASYNC_ENABLE |
3571 | void |
4277 | void |
3572 | ev_async_start (EV_P_ ev_async *w) |
4278 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
3573 | { |
4279 | { |
3574 | if (expect_false (ev_is_active (w))) |
4280 | if (expect_false (ev_is_active (w))) |
3575 | return; |
4281 | return; |
3576 | |
4282 | |
3577 | w->sent = 0; |
4283 | w->sent = 0; |
… | |
… | |
3586 | |
4292 | |
3587 | EV_FREQUENT_CHECK; |
4293 | EV_FREQUENT_CHECK; |
3588 | } |
4294 | } |
3589 | |
4295 | |
3590 | void |
4296 | void |
3591 | ev_async_stop (EV_P_ ev_async *w) |
4297 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
3592 | { |
4298 | { |
3593 | clear_pending (EV_A_ (W)w); |
4299 | clear_pending (EV_A_ (W)w); |
3594 | if (expect_false (!ev_is_active (w))) |
4300 | if (expect_false (!ev_is_active (w))) |
3595 | return; |
4301 | return; |
3596 | |
4302 | |
… | |
… | |
3607 | |
4313 | |
3608 | EV_FREQUENT_CHECK; |
4314 | EV_FREQUENT_CHECK; |
3609 | } |
4315 | } |
3610 | |
4316 | |
3611 | void |
4317 | void |
3612 | ev_async_send (EV_P_ ev_async *w) |
4318 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
3613 | { |
4319 | { |
3614 | w->sent = 1; |
4320 | w->sent = 1; |
3615 | evpipe_write (EV_A_ &async_pending); |
4321 | evpipe_write (EV_A_ &async_pending); |
3616 | } |
4322 | } |
3617 | #endif |
4323 | #endif |
… | |
… | |
3654 | |
4360 | |
3655 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4361 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
3656 | } |
4362 | } |
3657 | |
4363 | |
3658 | void |
4364 | void |
3659 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
4365 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
3660 | { |
4366 | { |
3661 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4367 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3662 | |
4368 | |
3663 | if (expect_false (!once)) |
4369 | if (expect_false (!once)) |
3664 | { |
4370 | { |
… | |
… | |
3685 | } |
4391 | } |
3686 | |
4392 | |
3687 | /*****************************************************************************/ |
4393 | /*****************************************************************************/ |
3688 | |
4394 | |
3689 | #if EV_WALK_ENABLE |
4395 | #if EV_WALK_ENABLE |
3690 | void |
4396 | void ecb_cold |
3691 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
4397 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
3692 | { |
4398 | { |
3693 | int i, j; |
4399 | int i, j; |
3694 | ev_watcher_list *wl, *wn; |
4400 | ev_watcher_list *wl, *wn; |
3695 | |
4401 | |
3696 | if (types & (EV_IO | EV_EMBED)) |
4402 | if (types & (EV_IO | EV_EMBED)) |
… | |
… | |
3739 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
4445 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
3740 | #endif |
4446 | #endif |
3741 | |
4447 | |
3742 | #if EV_IDLE_ENABLE |
4448 | #if EV_IDLE_ENABLE |
3743 | if (types & EV_IDLE) |
4449 | if (types & EV_IDLE) |
3744 | for (j = NUMPRI; i--; ) |
4450 | for (j = NUMPRI; j--; ) |
3745 | for (i = idlecnt [j]; i--; ) |
4451 | for (i = idlecnt [j]; i--; ) |
3746 | cb (EV_A_ EV_IDLE, idles [j][i]); |
4452 | cb (EV_A_ EV_IDLE, idles [j][i]); |
3747 | #endif |
4453 | #endif |
3748 | |
4454 | |
3749 | #if EV_FORK_ENABLE |
4455 | #if EV_FORK_ENABLE |
… | |
… | |
3802 | |
4508 | |
3803 | #if EV_MULTIPLICITY |
4509 | #if EV_MULTIPLICITY |
3804 | #include "ev_wrap.h" |
4510 | #include "ev_wrap.h" |
3805 | #endif |
4511 | #endif |
3806 | |
4512 | |
3807 | EV_CPP(}) |
|
|
3808 | |
|
|